Cost of Living Comparison Between the US â Costa Rica. The cost of living in Costa Rica has assuredly become one of the principle. considerations when contemplating living in Costa Rica. Costa Ricaâs cost of. living is substantially lower than that of the United States. Some of the primary. costs associated with living in Costa Rica include: ï¶ PROPERTY TAXES-Low property tax rates are one of the most attractive. benefits when living in Costa Rica. Property tax rates can be as low as 1/25th of. the rates of some areas in the U.S. The Costa Rican government has divided the.