National Register of Historic Places listings in Lake County, Indiana
# National Register of Historic Places listings in Lake County, Indiana

This is a list of the National Register of Historic Places listings in Lake County, Indiana.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Lake County, Indiana, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.

There are 82 properties and districts listed on the National Register in the county. Another 2 properties were once listed but have been removed.

Properties and districts located in incorporated areas display the name of the municipality, while properties and districts in unincorporated areas display the name of their civil township. Properties and districts split between multiple jurisdictions display the names of all jurisdictions.

This National Park Service list is complete through NPS recent listings posted July 14, 2023.

## Current listings

| | Name on the Register | Image | Date listed | Location | City or town | Description |
| - | - | - | - | - | - | - |
| 1 | Walter Allman House | Walter Allman House | December 27, 2010 (#10001077) | 102 S. East St. 41°25′04″N 87°21′43″W﻿ / ﻿41.417778°N 87.362078°W﻿ / 41.417778; -87.362078﻿ (Walter Allman House) | Crown Point | |
| 2 | American Sheet and Tin Mill Apartment Building | American Sheet and Tin Mill Apartment Building | June 17, 2009 (#09000427) | 633 W. 4th Ave. 41°36′13″N 87°20′44″W﻿ / ﻿41.603611°N 87.345556°W﻿ / 41.603611; -87.345556﻿ (American Sheet and Tin Mill Apartment Building) | Gary | |
| 3 | Louis J. Bailey Branch Library-Gary International Institute | Louis J. Bailey Branch Library-Gary International Institute | September 29, 2004 (#04001102) | 1501 S. Madison St. 41°35′16″N 87°20′29″W﻿ / ﻿41.587778°N 87.341389°W﻿ / 41.587778; -87.341389﻿ (Louis J. Bailey Branch Library-Gary International Institute) | Gary | |
| 4 | James Brannon House | James Brannon House | March 21, 2011 (#11000120) | 260 Burnham St. 41°17′42″N 87°24′53″W﻿ / ﻿41.295000°N 87.414722°W﻿ / 41.295000; -87.414722﻿ (James Brannon House) | Lowell | |
| 5 | Buckley Homestead | Buckley Homestead | December 6, 1984 (#84000503) | 3606 Belshaw Rd., southeast of Lowell 41°16′53″N 87°22′43″W﻿ / ﻿41.281389°N 87.378611°W﻿ / 41.281389; -87.378611﻿ (Buckley Homestead) | Cedar Creek Township | |
| 6 | Wellington A. Clark House | Wellington A. Clark House | June 6, 2001 (#01000619) | 227 S. Court St. 41°24′57″N 87°21′57″W﻿ / ﻿41.415722°N 87.365833°W﻿ / 41.415722; -87.365833﻿ (Wellington A. Clark House) | Crown Point | |
| 7 | Combs Addition Historic District | Combs Addition Historic District | September 30, 2014 (#14000805) | 400 and 500 blocks of Rutledge and Ellsworth Sts., and the 500 block of Marshall St. between 4th and 6th Aves. 41°36′10″N 87°22′10″W﻿ / ﻿41.602778°N 87.369444°W﻿ / 41.602778; -87.369444﻿ (Combs Addition Historic District) | Gary | |
| 8 | Crawford-Winslow House | Crawford-Winslow House | June 25, 2013 (#13000422) | 357 S. Main St. 41°24′47″N 87°21′53″W﻿ / ﻿41.413194°N 87.364722°W﻿ / 41.413194; -87.364722﻿ (Crawford-Winslow House) | Crown Point | |
| 9 | Crown Point Courthouse Square Historic District | Crown Point Courthouse Square Historic District More images | March 22, 2004 (#04000203) | Roughly bounded by Clark St., the alley east of Main St., Hack Ct., and Court St.; also roughly bounded by Robinson, East, Walnut, and Court Sts.; also 208 Main St. 41°25′02″N 87°21′56″W﻿ / ﻿41.417333°N 87.365456°W﻿ / 41.417333; -87.365456﻿ (Crown Point Courthouse Square Historic District) | Crown Point | Second set of boundaries represents a boundary adjustment of December 8, 2005; 208 Main represents a boundary increase of March 29, 2007 |
| 10 | Morse Dell Plain House and Garden | Morse Dell Plain House and Garden | April 1, 1998 (#98000298) | 7109 Knickerbocker Parkway 41°35′03″N 87°28′39″W﻿ / ﻿41.584167°N 87.4775°W﻿ / 41.584167; -87.4775﻿ (Morse Dell Plain House and Garden) | Hammond | |
| 11 | Ralph Waldo Emerson School | Ralph Waldo Emerson School More images | June 9, 1995 (#95000702) | 716 E. 7th Ave. 41°35′57″N 87°19′39″W﻿ / ﻿41.599167°N 87.3275°W﻿ / 41.599167; -87.3275﻿ (Ralph Waldo Emerson School) | Gary | |
| 12 | Eskilson Historic District | Eskilson Historic District | March 26, 2014 (#14000073) | Roughly bounded by W. 3rd Ave. and the alleys between Garfield and Hayes Sts., W. 4th Pl., and W. 5th Ave., Cleveland St., and McKinley St. 41°36′13″N 87°21′37″W﻿ / ﻿41.603611°N 87.360278°W﻿ / 41.603611; -87.360278﻿ (Eskilson Historic District) | Gary | |
| 13 | First Unitarian Church of Hobart | First Unitarian Church of Hobart More images | September 9, 1999 (#99001112) | 497 Main St. 41°31′48″N 87°15′11″W﻿ / ﻿41.530000°N 87.253056°W﻿ / 41.530000; -87.253056﻿ (First Unitarian Church of Hobart) | Hobart | |
| 14 | Forest-Ivanhoe Residential Historic District | Forest-Ivanhoe Residential Historic District More images | March 31, 2010 (#10000124) | Roughly bounded by 172nd Pl., the eastern side of Forest Ave. south to its end, and the Little Calumet River 41°34′51″N 87°31′25″W﻿ / ﻿41.580931°N 87.523533°W﻿ / 41.580931; -87.523533﻿ (Forest-Ivanhoe Residential Historic District) | Hammond | |
| 15 | Forest-Moraine Residential Historic District | Forest-Moraine Residential Historic District More images | September 23, 2010 (#10000777) | Roughly bounded by Wildwood Rd., 165th St., Hohman Ave. and State Line Ave. 41°35′53″N 87°31′24″W﻿ / ﻿41.598056°N 87.523333°W﻿ / 41.598056; -87.523333﻿ (Forest-Moraine Residential Historic District) | Hammond | |
| 16 | Forest-Southview Residential Historic District | Forest-Southview Residential Historic District More images | September 23, 2010 (#10000778) | Roughly bounded by 165th St., Hohman Ave., Locust St. and State Line Ave. 41°35′37″N 87°31′25″W﻿ / ﻿41.593611°N 87.523611°W﻿ / 41.593611; -87.523611﻿ (Forest-Southview Residential Historic District) | Hammond | |
| 17 | Gary Bathing Beach Aquatorium | Gary Bathing Beach Aquatorium More images | November 25, 1994 (#94001354) | One Marquette Dr., Marquette Park 41°37′11″N 87°15′24″W﻿ / ﻿41.619722°N 87.256667°W﻿ / 41.619722; -87.256667﻿ (Gary Bathing Beach Aquatorium) | Gary | |
| 18 | Gary City Center Historic District | Gary City Center Historic District More images | November 25, 1994 (#94001352) | Roughly Broadway from the Chicago SouthShore and South Bend railroad tracks to 9th Ave. 41°36′01″N 87°20′13″W﻿ / ﻿41.600278°N 87.336944°W﻿ / 41.600278; -87.336944﻿ (Gary City Center Historic District) | Gary | |
| 19 | Gary Land Company Building | Gary Land Company Building More images | May 8, 1979 (#79000021) | 4th Ave. and Massachusetts St. 41°36′15″N 87°20′09″W﻿ / ﻿41.604167°N 87.335833°W﻿ / 41.604167; -87.335833﻿ (Gary Land Company Building) | Gary | |
| 20 | Gary Public Schools Memorial Auditorium | Gary Public Schools Memorial Auditorium More images | November 25, 1994 (#94001353) | 700-734 Massachusetts St. 41°35′53″N 87°20′10″W﻿ / ﻿41.598056°N 87.336111°W﻿ / 41.598056; -87.336111﻿ (Gary Public Schools Memorial Auditorium) | Gary | |
| 21 | Gary Union Station | Gary Union Station More images | June 6, 2019 (#100004040) | 251 N. Broadway 41°36′20″N 87°20′13″W﻿ / ﻿41.6056°N 87.3370°W﻿ / 41.6056; -87.3370﻿ (Gary Union Station) | Gary | |
| 22 | Glendale Park Historic District | Glendale Park Historic District More images | June 25, 2013 (#13000423) | 17-64 Glendale Parkway 41°36′07″N 87°31′24″W﻿ / ﻿41.601944°N 87.523333°W﻿ / 41.601944; -87.523333﻿ (Glendale Park Historic District) | Hammond | |
| 23 | E.J. and E. Griffith Interlocking Tower | E.J. and E. Griffith Interlocking Tower | September 28, 2003 (#03000980) | 201 S. Broad St. 41°31′16″N 87°25′39″W﻿ / ﻿41.521111°N 87.4275°W﻿ / 41.521111; -87.4275﻿ (E.J. and E. Griffith Interlocking Tower) | Griffith | |
| 24 | Griffith Grand Trunk Depot | Griffith Grand Trunk Depot | September 28, 2003 (#03000985) | 201 S. Broad St. 41°31′16″N 87°25′39″W﻿ / ﻿41.521111°N 87.4275°W﻿ / 41.521111; -87.4275﻿ (Griffith Grand Trunk Depot) | Griffith | |
| 25 | Griffith State Bank | Upload image | June 3, 2019 (#100004050) | 101 E. Main St. 41°31′22″N 87°25′39″W﻿ / ﻿41.5228°N 87.4276°W﻿ / 41.5228; -87.4276﻿ (Griffith State Bank) | Griffith | |
| 26 | Melvin A. Halsted House | Melvin A. Halsted House | December 8, 1978 (#78000037) | 201 E. Main St. 41°17′36″N 87°25′21″W﻿ / ﻿41.293333°N 87.422389°W﻿ / 41.293333; -87.422389﻿ (Melvin A. Halsted House) | Lowell | |
| 27 | Hansen Branch-Hammond Public Library | Upload image | November 29, 2019 (#100004719) | 2823 Martha St., 6736 Alabama Ave. 41°35′26″N 87°27′38″W﻿ / ﻿41.5906°N 87.4606°W﻿ / 41.5906; -87.4606﻿ (Hansen Branch-Hammond Public Library) | Hammond | |
| 28 | Hobart Carnegie Library | Hobart Carnegie Library More images | July 15, 1982 (#82000047) | 706 E. 4th St. 41°31′55″N 87°15′07″W﻿ / ﻿41.532083°N 87.251944°W﻿ / 41.532083; -87.251944﻿ (Hobart Carnegie Library) | Hobart | |
| 29 | Hobart Commercial District | Hobart Commercial District | December 16, 2014 (#14001037) | Roughly bounded by Lake George, the Norfolk Southern rail line, and Center and 2nd Sts.. 41°31′55″N 87°15′17″W﻿ / ﻿41.531944°N 87.254722°W﻿ / 41.531944; -87.254722﻿ (Hobart Commercial District) | Hobart | |
| 30 | Hobart First Methodist Episcopal Church | Hobart First Methodist Episcopal Church | December 7, 2017 (#100001880) | 650 and 654 E. 4th St. 41°31′55″N 87°15′08″W﻿ / ﻿41.531944°N 87.252222°W﻿ / 41.531944; -87.252222﻿ (Hobart First Methodist Episcopal Church) | Hobart | |
| 31 | Hohman Avenue Commercial Historic District | Hohman Avenue Commercial Historic District More images | March 21, 2011 (#11000118) | Approximately three blocks lining Hohman Ave. between Clinton St. and Rimbach St. 41°37′02″N 87°31′19″W﻿ / ﻿41.617222°N 87.521944°W﻿ / 41.617222; -87.521944﻿ (Hohman Avenue Commercial Historic District) | Hammond | |
| 32 | Hoosier Theater Building | Hoosier Theater Building | February 18, 1987 (#87000069) | 1329-1335 119th St. 41°40′46″N 87°29′47″W﻿ / ﻿41.679444°N 87.496389°W﻿ / 41.679444; -87.496389﻿ (Hoosier Theater Building) | Whiting | |
| 33 | Ibach House | Ibach House | December 27, 2010 (#10001078) | 1908 Ridge Rd. 41°33′26″N 87°28′56″W﻿ / ﻿41.557222°N 87.482222°W﻿ / 41.557222; -87.482222﻿ (Ibach House) | Munster | |
| 34 | Indi-Illi Park Historic District | Indi-Illi Park Historic District More images | June 15, 2012 (#12000335) | Roughly bounded by Locust and 169th Sts., and Hohman and State Line Aves. 41°35′24″N 87°31′28″W﻿ / ﻿41.590000°N 87.524444°W﻿ / 41.590000; -87.524444﻿ (Indi-Illi Park Historic District) | Hammond | |
| 35 | Indiana Harbor Public Library | Indiana Harbor Public Library | September 15, 2005 (#05001014) | 3605 Grand Ave. 41°38′51″N 87°26′58″W﻿ / ﻿41.647500°N 87.449444°W﻿ / 41.647500; -87.449444﻿ (Indiana Harbor Public Library) | East Chicago | |
| 36 | Jackson-Monroe Terraces Historic District | Jackson-Monroe Terraces Historic District | June 17, 2009 (#09000428) | 404-423 Jackson St. and 408-426 Monroe St. 41°36′12″N 87°20′39″W﻿ / ﻿41.603333°N 87.344167°W﻿ / 41.603333; -87.344167﻿ (Jackson-Monroe Terraces Historic District) | Gary | |
| 37 | Jefferson Street Historic District | Jefferson Street Historic District | September 18, 2013 (#13000723) | Roughly bounded by Washington St. and 37th, 35th, Jefferson, and Madison Aves. 41°33′10″N 87°20′21″W﻿ / ﻿41.552778°N 87.339167°W﻿ / 41.552778; -87.339167﻿ (Jefferson Street Historic District) | Gary | |
| 38 | Francis P. Keilman House | Francis P. Keilman House | March 20, 2013 (#13000084) | 9260 Patterson St. 41°27′03″N 87°28′17″W﻿ / ﻿41.450750°N 87.471389°W﻿ / 41.450750; -87.471389﻿ (Francis P. Keilman House) | St. John | |
| 39 | Kingsbury-Doak Farmhouse | Kingsbury-Doak Farmhouse | September 15, 2005 (#05001013) | 4411 E. 153rd Ave., west of Hebron 41°20′20″N 87°17′11″W﻿ / ﻿41.338889°N 87.286389°W﻿ / 41.338889; -87.286389﻿ (Kingsbury-Doak Farmhouse) | Eagle Creek Township | |
| 40 | Knights of Columbus Building | Knights of Columbus Building More images | March 1, 1984 (#84001065) | 333 W. 5th Ave. 41°36′06″N 87°20′30″W﻿ / ﻿41.601667°N 87.341667°W﻿ / 41.601667; -87.341667﻿ (Knights of Columbus Building) | Gary | |
| 41 | Lake County Courthouse | Lake County Courthouse More images | May 17, 1973 (#73000073) | Public Sq. 41°25′02″N 87°21′57″W﻿ / ﻿41.417222°N 87.365833°W﻿ / 41.417222; -87.365833﻿ (Lake County Courthouse) | Crown Point | |
| 42 | Lake County Tuberculosis Sanatorium, Nurses Home and Superintendent's House | Lake County Tuberculosis Sanatorium, Nurses Home and Superintendent's House More images | June 17, 2005 (#05000608) | 2323 N. Main St. and 425 W. 93rd Ave. 41°27′04″N 87°21′55″W﻿ / ﻿41.451111°N 87.365278°W﻿ / 41.451111; -87.365278﻿ (Lake County Tuberculosis Sanatorium, Nurses Home and Superintendent's House) | Crown Point | 427 W. 93rd represents a boundary increase of January 9, 2013 |
| 43 | Lake County Sheriff's House and Jail | Lake County Sheriff's House and Jail | January 4, 1989 (#88003039) | 232 S. Main St. 41°24′56″N 87°21′51″W﻿ / ﻿41.415556°N 87.364167°W﻿ / 41.415556; -87.364167﻿ (Lake County Sheriff's House and Jail) | Crown Point | |
| 44 | Lassen Hotel | Lassen Hotel | July 7, 1981 (#81000019) | 7808 W. 138th Pl. 41°22′06″N 87°25′30″W﻿ / ﻿41.368333°N 87.425°W﻿ / 41.368333; -87.425﻿ (Lassen Hotel) | Cedar Lake | |
| 45 | Lincoln Street Historic District | Lincoln Street Historic District | December 31, 2013 (#13001012) | Roughly bounded by Fillmore and Hayes Sts. and 6th and 8th Aves. 41°35′57″N 87°21′17″W﻿ / ﻿41.599167°N 87.354722°W﻿ / 41.599167; -87.354722﻿ (Lincoln Street Historic District) | Gary | |
| 46 | Lowell Commercial Historic District | Lowell Commercial Historic District More images | March 26, 2003 (#03000144) | 305-519 Commercial Ave. and 108-110 Clark St. 41°17′30″N 87°25′23″W﻿ / ﻿41.291667°N 87.423056°W﻿ / 41.291667; -87.423056﻿ (Lowell Commercial Historic District) | Lowell | |
| 47 | Albert Maack House | Albert Maack House More images | June 23, 2011 (#11000383) | 498 S. Court St. 41°24′34″N 87°21′58″W﻿ / ﻿41.409444°N 87.366111°W﻿ / 41.409444; -87.366111﻿ (Albert Maack House) | Crown Point | |
| 48 | Horace Mann Historic District | Horace Mann Historic District | September 18, 2013 (#13000722) | Roughly bounded by W. 5th, 8th, and 7th Aves., and Cleveland and Roosevelt Sts. 41°36′00″N 87°21′47″W﻿ / ﻿41.600000°N 87.363056°W﻿ / 41.600000; -87.363056﻿ (Horace Mann Historic District) | Gary | |
| 49 | Marktown Historic District | Marktown Historic District More images | February 20, 1975 (#75000025) | Bounded by Pine, Riley, Dickey, and 129th Sts. 41°39′31″N 87°28′04″W﻿ / ﻿41.658611°N 87.467778°W﻿ / 41.658611; -87.467778﻿ (Marktown Historic District) | East Chicago | |
| 50 | MATERIAL SERVICE (shipwreck) | MATERIAL SERVICE (shipwreck) | March 25, 2014 (#14000074) | Lake Michigan, northeast of Calumet Harbor 41°44′33″N 87°30′23″W﻿ / ﻿41.742500°N 87.506389°W﻿ / 41.742500; -87.506389﻿ (MATERIAL SERVICE (shipwreck)) | North Township | |
| 51 | Joseph Ernest Meyer House | Joseph Ernest Meyer House | March 1, 1984 (#84001068) | 1370 Joliet St. 41°29′26″N 87°29′48″W﻿ / ﻿41.490556°N 87.496667°W﻿ / 41.490556; -87.496667﻿ (Joseph Ernest Meyer House) | Dyer | |
| 52 | Miller Town Hall | Miller Town Hall More images | July 7, 1978 (#78000038) | Junction of Miller Ave., Old Hobart Rd., and Grand Boulevard 41°36′02″N 87°15′41″W﻿ / ﻿41.600556°N 87.261389°W﻿ / 41.600556; -87.261389﻿ (Miller Town Hall) | Gary | |
| 53 | Monon Park Dancing Pavilion | Monon Park Dancing Pavilion | January 3, 2001 (#00001540) | 13701 Lauerman St. 41°22′07″N 87°26′22″W﻿ / ﻿41.368611°N 87.439444°W﻿ / 41.368611; -87.439444﻿ (Monon Park Dancing Pavilion) | Cedar Lake | |
| 54 | Monroe Terrace Historic District | Monroe Terrace Historic District | June 17, 2009 (#09000429) | 304-318 Monroe St. 41°36′19″N 87°20′37″W﻿ / ﻿41.605278°N 87.343611°W﻿ / 41.605278; -87.343611﻿ (Monroe Terrace Historic District) | Gary | |
| 55 | Morgan-Skinner-Boyd Homestead | Morgan-Skinner-Boyd Homestead | December 27, 2010 (#10001079) | 111 E. 73rd Ave. 41°29′08″N 87°20′02″W﻿ / ﻿41.485556°N 87.333889°W﻿ / 41.485556; -87.333889﻿ (Morgan-Skinner-Boyd Homestead) | Merrillville | |
| 56 | Morningside Historic District | Morningside Historic District | September 24, 2009 (#09000758) | Roughly bounded by the eastern side of Washington, the western side of Jefferson, and 45th and 47th Sts. 41°32′05″N 87°20′22″W﻿ / ﻿41.534722°N 87.339444°W﻿ / 41.534722; -87.339444﻿ (Morningside Historic District) | Gary | |
| 57 | Carolyn Mosby Senior High Rise | Upload image | May 24, 2022 (#100007736) | 650 Jackson St. 41°35′56″N 87°20′41″W﻿ / ﻿41.5988°N 87.3447°W﻿ / 41.5988; -87.3447﻿ (Carolyn Mosby Senior High Rise) | Gary | |
| 57 | Charles E. Nichols House | Charles E. Nichols House | June 24, 2010 (#10000375) | 231 W. Commercial Ave. 41°17′23″N 87°25′39″W﻿ / ﻿41.289722°N 87.427444°W﻿ / 41.289722; -87.427444﻿ (Charles E. Nichols House) | Lowell | |
| 58 | North Gleason Park Community Building | Upload image | August 24, 2021 (#100006843) | 301 West 30th Ave. 41°33′49″N 87°20′27″W﻿ / ﻿41.5636°N 87.3407°W﻿ / 41.5636; -87.3407﻿ (North Gleason Park Community Building) | Gary | |
| 59 | Northern States Life Insurance Company | Northern States Life Insurance Company | June 24, 2010 (#10000376) | 5935 Hohman Ave. 41°36′20″N 87°31′18″W﻿ / ﻿41.605556°N 87.521667°W﻿ / 41.605556; -87.521667﻿ (Northern States Life Insurance Company) | Hammond | |
| 60 | Pennsylvania Railroad Station | Pennsylvania Railroad Station More images | March 1, 1984 (#84001070) | 1001 Lillian St. 41°32′04″N 87°14′50″W﻿ / ﻿41.534444°N 87.247222°W﻿ / 41.534444; -87.247222﻿ (Pennsylvania Railroad Station) | Hobart | |
| 61 | Polk Street Concrete Cottage Historic District | Polk Street Concrete Cottage Historic District | September 15, 2011 (#11000657) | 604-614 Polk St. 41°35′59″N 87°21′00″W﻿ / ﻿41.599722°N 87.350000°W﻿ / 41.599722; -87.350000﻿ (Polk Street Concrete Cottage Historic District) | Gary | |
| 62 | Polk Street Terraces Historic District | Polk Street Terraces Historic District | June 17, 2009 (#09000430) | 404-422 and 437-455 Polk St. 41°36′13″N 87°20′59″W﻿ / ﻿41.603611°N 87.349722°W﻿ / 41.603611; -87.349722﻿ (Polk Street Terraces Historic District) | Gary | |
| 63 | Pullman-Standard Historic District | Pullman-Standard Historic District More images | April 10, 2012 (#12000186) | Roughly bounded by Columbia, Field, Porter, and Willard Aves. 41°36′17″N 87°29′53″W﻿ / ﻿41.604637°N 87.498134°W﻿ / 41.604637; -87.498134﻿ (Pullman-Standard Historic District) | Hammond | |
| 64 | Theodore Roosevelt High School | Theodore Roosevelt High School More images | December 19, 2012 (#12001059) | 730 W. 25th St. 41°34′28″N 87°20′42″W﻿ / ﻿41.574444°N 87.345000°W﻿ / 41.574444; -87.345000﻿ (Theodore Roosevelt High School) | Gary | |
| 65 | Roselawn-Forest Heights Historic District | Roselawn-Forest Heights Historic District | December 19, 2012 (#12001060) | Roughly bounded by Lawndale, 172nd Pl., and Hohman and State Line Aves. 41°35′12″N 87°31′26″W﻿ / ﻿41.586667°N 87.523889°W﻿ / 41.586667; -87.523889﻿ (Roselawn-Forest Heights Historic District) | Hammond | |
| 66 | John Ross Farm | John Ross Farm | March 27, 1996 (#96000283) | 3815 E. U.S. Route 231, northwest of Leroy 41°22′14″N 87°17′21″W﻿ / ﻿41.370556°N 87.289167°W﻿ / 41.370556; -87.289167﻿ (John Ross Farm) | Winfield Township | |
| 67 | J. Claude Rumsey House | J. Claude Rumsey House | December 22, 2008 (#08001211) | 709 Michigan Ave. 41°17′44″N 87°25′00″W﻿ / ﻿41.295556°N 87.416667°W﻿ / 41.295556; -87.416667﻿ (J. Claude Rumsey House) | Lowell | |
| 68 | Barney Sablotny House | Barney Sablotny House | December 19, 2012 (#12001061) | 501 W. 47th St. 41°31′59″N 87°20′33″W﻿ / ﻿41.532917°N 87.342500°W﻿ / 41.532917; -87.342500﻿ (Barney Sablotny House) | Gary | |
| 69 | St. Augustine's Episcopal Church | St. Augustine's Episcopal Church More images | September 18, 2013 (#13000758) | 2425 W. 19th Ave. 41°35′03″N 87°22′05″W﻿ / ﻿41.584167°N 87.368056°W﻿ / 41.584167; -87.368056﻿ (St. Augustine's Episcopal Church) | Gary | |
| 70 | St. John's Lutheran Church and School | St. John's Lutheran Church and School More images | December 3, 2019 (#100004723) | 2271 West 10th Ave. 41°35′35″N 87°21′57″W﻿ / ﻿41.5930°N 87.3658°W﻿ / 41.5930; -87.3658﻿ (St. John's Lutheran Church and School) | Gary | |
| 71 | Henry and Caroline Schrage House | Upload image | May 13, 2021 (#100006562) | 2006 Schrage Ave. 41°40′36″N 87°29′23″W﻿ / ﻿41.6768°N 87.4898°W﻿ / 41.6768; -87.4898﻿ (Henry and Caroline Schrage House) | Whiting | |
| 72 | Southmoor Apartment Hotel | Southmoor Apartment Hotel | March 21, 2011 (#11000125) | 5946 Hohman Ave. 41°36′19″N 87°31′20″W﻿ / ﻿41.6053°N 87.5222°W﻿ / 41.6053; -87.5222﻿ (Southmoor Apartment Hotel) | Hammond | |
| 73 | Stallbohm Barn-Kaske House | Stallbohm Barn-Kaske House | April 1, 1998 (#98000303) | 1154 Ridge Rd. 41°33′35″N 87°30′01″W﻿ / ﻿41.5597°N 87.5003°W﻿ / 41.5597; -87.5003﻿ (Stallbohm Barn-Kaske House) | Munster | |
| 74 | State Bank of Hammond Building | State Bank of Hammond Building | September 27, 1984 (#84001072) | 5444-5446 Calumet Ave. 41°36′51″N 87°30′33″W﻿ / ﻿41.614250°N 87.5092°W﻿ / 41.614250; -87.5092﻿ (State Bank of Hammond Building) | Hammond | |
| 75 | State Street Commercial Historic District | State Street Commercial Historic District More images | September 17, 1999 (#99001157) | Roughly State St. between Sohl and Bulletin Ave. 41°37′07″N 87°31′00″W﻿ / ﻿41.618611°N 87.516667°W﻿ / 41.618611; -87.516667﻿ (State Street Commercial Historic District) | Hammond | |
| 76 | Van Buren Terrace Historic District | Van Buren Terrace Historic District More images | June 22, 2007 (#07000565) | 336-354 Van Buren St. 41°36′17″N 87°20′47″W﻿ / ﻿41.604722°N 87.346389°W﻿ / 41.604722; -87.346389﻿ (Van Buren Terrace Historic District) | Gary | |
| 77 | West Fifth Avenue Apartments Historic District | West Fifth Avenue Apartments Historic District | May 17, 1984 (#84001076) | Roughly 5th Ave. from Taft to Pierce St. 41°36′06″N 87°21′29″W﻿ / ﻿41.601667°N 87.358056°W﻿ / 41.601667; -87.358056﻿ (West Fifth Avenue Apartments Historic District) | Gary | |
| 78 | William Whitaker Landscape and House | William Whitaker Landscape and House More images | September 9, 1999 (#99001107) | 472 S. Main St. 41°24′37″N 87°21′50″W﻿ / ﻿41.410278°N 87.363889°W﻿ / 41.410278; -87.363889﻿ (William Whitaker Landscape and House) | Crown Point | |
| 79 | Whiting Memorial Community House | Whiting Memorial Community House More images | February 8, 1980 (#80000044) | 1938 Clark St. 41°40′41″N 87°29′47″W﻿ / ﻿41.678056°N 87.496389°W﻿ / 41.678056; -87.496389﻿ (Whiting Memorial Community House) | Whiting | |
| 80 | George John Wolf House | George John Wolf House More images | June 21, 2007 (#07000563) | 7220 Forest Ave. 41°34′57″N 87°31′27″W﻿ / ﻿41.582500°N 87.524167°W﻿ / 41.582500; -87.524167﻿ (George John Wolf House) | Hammond | |
| 81 | John Wood Old Mill | John Wood Old Mill | October 10, 1975 (#75000026) | East of central Merrillville on State Road 330 41°28′36″N 87°13′18″W﻿ / ﻿41.476528°N 87.221667°W﻿ / 41.476528; -87.221667﻿ (John Wood Old Mill) | Merrillville | |

## Former listings

| | Name on the Register | Image | Date listed | Date removed | Location | City or town | Description |
| - | - | - | - | - | - | - | - |
| 1 | John Stewart Settlement House | Upload image | June 7, 1978 (#78000039) | November 4, 1992 | 1501 Massachusetts St. | Gary | The house has been demolished and was delisted in 1992. |
| 2 | Wilbur Wynant House | Wilbur Wynant House More images | October 18, 2002 (#02001168) | December 15, 2011 | 600 Fillmore St. 41°36′00″N 87°21′05″W﻿ / ﻿41.6°N 87.351389°W﻿ / 41.6; -87.351389﻿ (Wilbur Wynant House) | Gary | A house discovered in 1995 to have been designed by Frank Lloyd Wright. Largely burned in 2006. |
