Idaho Falls, ID vs St. Louis, MO: cost of living compared
Price levels from BEA (2024); rent and home values from Zillow (September 2026).
The short answer
- Overall, living costs in St. Louis, MO and Idaho Falls, ID are within 1% of each other (BEA, 2024).
- To keep the same standard of living, $75,000 in Idaho Falls works out to about $75,500 in St. Louis, before taxes.
- Housing is 5.9% lower in St. Louis, goods 4.0% higher and other services 0.3% lower, which roughly cancel out.
- Typical asking rent is $1,427 a month in St. Louis and $1,434 in Idaho Falls, nearly the same (Zillow, September 2026).
- A typical home is valued at about $273,000 in St. Louis and $408,000 in Idaho Falls.
- The gap has narrowed since 2019, when St. Louis was 3.4% more expensive than Idaho Falls.
derived Calculated from BEA Regional Price Parities (2024) and Zillow data. Based on an average household's spending; taxes not included. How we calculate.
Category by category
Both cities against the US average (100). The gap in each row is what matters for a move.
Overall prices are about the same in Idaho Falls and St. Louis
Price level by category, 2024. US average = 100.
- Idaho Falls, ID
- St. Louis, MO
All items Idaho Falls, ID: 94.4 St. Louis, MO: 95.1
Goods Idaho Falls, ID: 96.2 St. Louis, MO: 100.0
Housing (rents) Idaho Falls, ID: 84.0 St. Louis, MO: 79.0
Utilities Idaho Falls, ID: 69.7 St. Louis, MO: 69.9
Other services Idaho Falls, ID: 99.0 St. Louis, MO: 98.6
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| All items | 94.4 | 95.1 |
| Goods | 96.2 | 100.0 |
| Housing (rents) | 84.0 | 79.0 |
| Utilities | 69.7 | 69.9 |
| Other services | 99.0 | 98.6 |
| Category | Idaho Falls | St. Louis | St. Louis vs Idaho Falls |
|---|---|---|---|
| All items | 94.4 | 95.1 | +0.7% |
| Goods | 96.2 | 100.0 | +4.0% |
| Housing (rents) | 84.0 | 79.0 | −5.9% |
| Utilities | 69.7 | 69.9 | +0.4% |
| Other services | 99.0 | 98.6 | −0.3% |
| Typical asking rent | $1,434 | $1,427 | −0.5% |
| Typical home value | $408,000 | $273,000 | −33.1% |
| Salary to match $75,000 in Idaho Falls | $75,000 | $75,500 | +0.7% |
Index values: BEA, 2024, US = 100. Rent and home values: Data Provided by Zillow Group, September 2026.
How the gap has changed since 2008
The price gap between Idaho Falls and St. Louis has narrowed since 2008: 4.2 points then, 0.7 now
Overall price level each year, 2008–2024. US average = 100.
- Idaho Falls, ID
- St. Louis, MO
US average = 100
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| 2008 | 95.2 | 91.0 |
| 2009 | 93.9 | 93.3 |
| 2010 | 91.2 | 97.0 |
| 2011 | 93.7 | 96.3 |
| 2012 | 93.2 | 94.5 |
| 2013 | 91.8 | 95.6 |
| 2014 | 87.9 | 96.9 |
| 2015 | 94.9 | 94.6 |
| 2016 | 95.4 | 94.5 |
| 2017 | 95.4 | 95.7 |
| 2018 | 90.9 | 94.5 |
| 2019 | 92.0 | 95.1 |
| 2020 | 90.9 | 95.2 |
| 2021 | 90.3 | 96.3 |
| 2022 | 90.9 | 96.6 |
| 2023 | 90.8 | 95.0 |
| 2024 | 94.4 | 95.1 |
Goods
- Idaho Falls, ID
- St. Louis, MO
US = 100
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| 2008 | 102.5 | 88.8 |
| 2009 | 100.2 | 90.5 |
| 2010 | 99.9 | 98.4 |
| 2011 | 99.9 | 95.1 |
| 2012 | 97.2 | 94.9 |
| 2013 | 95.3 | 97.5 |
| 2014 | 97.6 | 99.0 |
| 2015 | 103.4 | 97.3 |
| 2016 | 105.0 | 96.3 |
| 2017 | 103.1 | 96.2 |
| 2018 | 96.0 | 97.0 |
| 2019 | 98.8 | 99.4 |
| 2020 | 95.3 | 104.3 |
| 2021 | 96.4 | 105.7 |
| 2022 | 95.9 | 101.7 |
| 2023 | 95.8 | 98.7 |
| 2024 | 96.2 | 100.0 |
Housing (rents)
- Idaho Falls, ID
- St. Louis, MO
US = 100
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| 2008 | 75.2 | 83.6 |
| 2009 | 76.1 | 84.3 |
| 2010 | 69.0 | 86.0 |
| 2011 | 75.2 | 88.8 |
| 2012 | 77.6 | 84.8 |
| 2013 | 71.9 | 86.2 |
| 2014 | 53.8 | 84.9 |
| 2015 | 70.7 | 83.9 |
| 2016 | 79.8 | 83.6 |
| 2017 | 75.6 | 81.8 |
| 2018 | 72.3 | 81.6 |
| 2019 | 72.6 | 80.7 |
| 2020 | 74.6 | 78.4 |
| 2021 | 76.8 | 80.1 |
| 2022 | 83.1 | 79.8 |
| 2023 | 79.4 | 80.6 |
| 2024 | 84.0 | 79.0 |
Utilities
- Idaho Falls, ID
- St. Louis, MO
US = 100
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| 2008 | 65.1 | 78.1 |
| 2009 | 71.0 | 83.9 |
| 2010 | 73.6 | 92.6 |
| 2011 | 74.6 | 96.2 |
| 2012 | 77.0 | 99.9 |
| 2013 | 79.3 | 90.9 |
| 2014 | 79.9 | 85.4 |
| 2015 | 81.1 | 86.8 |
| 2016 | 85.1 | 81.2 |
| 2017 | 79.9 | 87.5 |
| 2018 | 73.8 | 90.7 |
| 2019 | 73.8 | 92.2 |
| 2020 | 74.1 | 92.9 |
| 2021 | 68.3 | 92.5 |
| 2022 | 66.0 | 75.6 |
| 2023 | 67.8 | 81.6 |
| 2024 | 69.7 | 69.9 |
Other services
- Idaho Falls, ID
- St. Louis, MO
US = 100
Source: U.S. Bureau of Economic Analysis, Regional Price Parities by metropolitan area, 2024 (US = 100).
Show the numbers
| Idaho Falls, ID | St. Louis, MO | |
|---|---|---|
| 2008 | 102.2 | 96.0 |
| 2009 | 99.4 | 98.7 |
| 2010 | 97.3 | 99.6 |
| 2011 | 99.0 | 99.4 |
| 2012 | 97.5 | 96.8 |
| 2013 | 99.3 | 97.4 |
| 2014 | 98.9 | 99.9 |
| 2015 | 99.0 | 96.3 |
| 2016 | 95.5 | 97.3 |
| 2017 | 99.1 | 99.9 |
| 2018 | 95.5 | 96.8 |
| 2019 | 96.4 | 96.8 |
| 2020 | 95.6 | 95.4 |
| 2021 | 91.9 | 95.3 |
| 2022 | 91.7 | 99.5 |
| 2023 | 93.1 | 97.6 |
| 2024 | 99.0 | 98.6 |
Rent and home values
Typical asking rent: $1,427 in St. Louis vs $1,434 in Idaho Falls
Typical asking rent for a new lease, dollars per month. Quarterly.
- Idaho Falls, ID
- St. Louis, MO
- United States
Source: Zillow Observed Rent Index (typical asking rent, all homes, smoothed), through September 2026. Data Provided by Zillow Group.
Show the numbers
| Idaho Falls, ID | St. Louis, MO | United States | |
|---|---|---|---|
| Mar 2015 | $709 | $850 | $1,145 |
| Jun 2015 | $723 | $860 | $1,170 |
| Sep 2015 | $728 | $861 | $1,181 |
| Dec 2015 | $705 | $863 | $1,182 |
| Mar 2016 | $725 | $873 | $1,195 |
| Jun 2016 | $750 | $881 | $1,219 |
| Sep 2016 | $765 | $881 | $1,225 |
| Dec 2016 | $751 | $880 | $1,222 |
| Mar 2017 | $777 | $893 | $1,245 |
| Jun 2017 | $796 | $905 | $1,270 |
| Sep 2017 | $819 | $908 | $1,276 |
| Dec 2017 | $817 | $904 | $1,275 |
| Mar 2018 | $841 | $917 | $1,296 |
| Jun 2018 | $845 | $933 | $1,320 |
| Sep 2018 | $872 | $933 | $1,327 |
| Dec 2018 | $884 | $935 | $1,329 |
| Mar 2019 | $890 | $949 | $1,349 |
| Jun 2019 | $922 | $965 | $1,376 |
| Sep 2019 | $938 | $965 | $1,383 |
| Dec 2019 | $944 | $966 | $1,381 |
| Mar 2020 | $959 | $985 | $1,402 |
| Jun 2020 | $982 | $1,000 | $1,406 |
| Sep 2020 | $1,023 | $1,016 | $1,410 |
| Dec 2020 | $1,054 | $1,021 | $1,407 |
| Mar 2021 | $1,111 | $1,037 | $1,443 |
| Jun 2021 | $1,172 | $1,075 | $1,512 |
| Sep 2021 | $1,250 | $1,102 | $1,590 |
| Dec 2021 | $1,277 | $1,117 | $1,622 |
| Mar 2022 | $1,303 | $1,148 | $1,661 |
| Jun 2022 | $1,352 | $1,186 | $1,721 |
| Sep 2022 | $1,346 | $1,200 | $1,748 |
| Dec 2022 | $1,325 | $1,207 | $1,735 |
| Mar 2023 | $1,334 | $1,217 | $1,757 |
| Jun 2023 | $1,360 | $1,255 | $1,785 |
| Sep 2023 | $1,367 | $1,262 | $1,797 |
| Dec 2023 | $1,337 | $1,264 | $1,786 |
| Mar 2024 | $1,370 | $1,282 | $1,807 |
| Jun 2024 | $1,397 | $1,313 | $1,837 |
| Sep 2024 | $1,398 | $1,323 | $1,845 |
| Dec 2024 | $1,385 | $1,328 | $1,836 |
| Mar 2025 | $1,390 | $1,343 | $1,860 |
| Jun 2025 | $1,423 | $1,360 | $1,880 |
| Sep 2025 | $1,404 | $1,371 | $1,881 |
| Dec 2025 | $1,400 | $1,376 | $1,873 |
| Mar 2026 | $1,420 | $1,392 | $1,894 |
| Jun 2026 | $1,439 | $1,413 | $1,921 |
| Sep 2026 | $1,434 | $1,427 | $1,932 |
Typical home value: $273,000 in St. Louis vs $408,000 in Idaho Falls
Typical home value, dollars. Quarterly.
- Idaho Falls, ID
- St. Louis, MO
- United States
Source: Zillow Home Value Index (typical home value, middle tier, smoothed, seasonally adjusted), through September 2026. Data Provided by Zillow Group.
Show the numbers
| Idaho Falls, ID | St. Louis, MO | United States | |
|---|---|---|---|
| Mar 2015 | $160K | $149K | $189K |
| Jun 2015 | $162K | $151K | $192K |
| Sep 2015 | $166K | $153K | $195K |
| Dec 2015 | $169K | $155K | $199K |
| Mar 2016 | $174K | $157K | $202K |
| Jun 2016 | $178K | $159K | $204K |
| Sep 2016 | $182K | $160K | $206K |
| Dec 2016 | $186K | $162K | $209K |
| Mar 2017 | $191K | $164K | $213K |
| Jun 2017 | $195K | $166K | $216K |
| Sep 2017 | $198K | $168K | $219K |
| Dec 2017 | $201K | $170K | $223K |
| Mar 2018 | $207K | $172K | $227K |
| Jun 2018 | $214K | $174K | $230K |
| Sep 2018 | $220K | $175K | $234K |
| Dec 2018 | $225K | $176K | $236K |
| Mar 2019 | $229K | $179K | $239K |
| Jun 2019 | $236K | $181K | $242K |
| Sep 2019 | $243K | $181K | $244K |
| Dec 2019 | $252K | $183K | $247K |
| Mar 2020 | $261K | $187K | $252K |
| Jun 2020 | $270K | $189K | $255K |
| Sep 2020 | $279K | $193K | $260K |
| Dec 2020 | $299K | $201K | $271K |
| Mar 2021 | $326K | $208K | $282K |
| Jun 2021 | $359K | $217K | $296K |
| Sep 2021 | $382K | $219K | $306K |
| Dec 2021 | $396K | $220K | $314K |
| Mar 2022 | $413K | $230K | $330K |
| Jun 2022 | $430K | $239K | $346K |
| Sep 2022 | $419K | $240K | $348K |
| Dec 2022 | $400K | $239K | $345K |
| Mar 2023 | $389K | $239K | $343K |
| Jun 2023 | $389K | $246K | $347K |
| Sep 2023 | $392K | $250K | $352K |
| Dec 2023 | $394K | $251K | $354K |
| Mar 2024 | $394K | $254K | $357K |
| Jun 2024 | $395K | $257K | $361K |
| Sep 2024 | $398K | $259K | $361K |
| Dec 2024 | $403K | $261K | $363K |
| Mar 2025 | $407K | $263K | $364K |
| Jun 2025 | $404K | $263K | $362K |
| Sep 2025 | $402K | $265K | $362K |
| Dec 2025 | $407K | $267K | $364K |
| Mar 2026 | $410K | $270K | $366K |
| Jun 2026 | $407K | $271K | $365K |
| Sep 2026 | $408K | $273K | $366K |
More about each city
- Cost of living in Idaho Falls, ID
- Cost of living in St. Louis, MO
- Reverse: moving from St. Louis to Idaho Falls
Related comparisons
What this comparison leaves out
- Taxes. State and local income, sales and property taxes can change the result a lot, especially between states.
- Neighborhoods. These are metro-wide averages; a city center and its outer suburbs can differ by more than two metros do.
- Your own spending mix. The default uses an average household. Use the housing slider above if rent is a bigger share of your budget.
- Timing. BEA price levels are for 2024; Zillow figures are monthly and newer.