Johnson County, Iowa has a 2026 one-unit conforming loan limit of $832,750, which is 2.7 times the county's median home value of $308,600, so a typical home there can be financed with a conforming (non-jumbo) loan; median household income is $74,935 (FHFA; Census ACS 2020–2024).
Data as of 2026. Source: FHFA 2026 conforming loan limits; U.S. Census Bureau ACS 2020–2024
| Item | Value |
|---|---|
| 1-unit limit (2026) | $832,750 |
| 2-unit limit | $1,066,250 |
| 3-unit limit | $1,288,800 |
| 4-unit limit | $1,601,750 |
| Median home value (ACS 2020–24) | $308,600 |
| Iowa median home value | $208,000 |
| Limit ÷ median home value | 2.70× |
| Median household income | $74,935 |
| Median home value ÷ income | 4.1× |
| Population | 156,639 |
| Median property tax paid (owners) | $4,681 |
| Effective property tax rate (approx.) | 1.52% |
| Owner-occupied homes | 59.4% |
| Home value rank in Iowa | 2 of 99 counties |
| Neighbor: Benton County, IA | limit $832,750; median home $208,200 |
| Neighbor: Cedar County, IA | limit $832,750; median home $211,300 |
| Neighbor: Iowa County, IA | limit $832,750; median home $193,900 |
| Neighbor: Linn County, IA | limit $832,750; median home $214,300 |
| Neighbor: Louisa County, IA | limit $832,750; median home $150,100 |
| Neighbor: Muscatine County, IA | limit $832,750; median home $182,100 |
| Neighbor: Washington County, IA | limit $832,750; median home $203,900 |
Across Iowa's 99 counties, FHFA's 2026 one-unit limits are $832,750 everywhere. Johnson County's median home value is 48% above the state median of $208,000 (rank 2 of 99). Among its 7 neighboring counties, Linn County has the highest median home value ($214,300) and Louisa County the lowest ($150,100); all share the same loan limit. Owners pay a median $4,681 a year in property tax, an effective rate of about 1.52% of home value.
County data: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024 (tables B25077, B19013, B01003, B25103, B25003). Neighbors: Census county adjacency file.
Related
- 2026 conforming loan limit: Jo Daviess County, IL
- 2026 conforming loan limit: Johnson County, AR
- 2026 conforming loan limit: Johnson County, GA
- 2026 conforming loan limit: Johnson County, IL
- 2026 conforming loan limit: Johnson County, IN
- 2026 conforming loan limit: Johnson County, KS
- 2026 conforming loan limit: Johnson County, KY
- 2026 conforming loan limit: Johnson County, MO
Last updated 2026-10-16. Data only, not financial or tax advice.