Grundy County, IA property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Grundy County is 1.07%, below the Iowa median of 1.43% and above the national median of 0.98%. The median homeowner pays $1,929 a year on a home worth $180,500.
- Effective rate
- 1.07%
- Median annual bill
- $1,929
- Median home value
- $180,500
- Rank in Iowa
- 91of 99
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $2,140 | $178 |
| $300,000 | $3,210 | $268 |
| $400,000 | $4,280 | $357 |
| $500,000 | $5,350 | $446 |
| $750,000 | $8,025 | $669 |
| $1,000,000 | $10,700 | $892 |
Grundy County compared with Iowa and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Grundy County | 1.07% | $1,929 | $180,500 |
| Iowa median | 1.43% | $2,795 | $195,900 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in Grundy County, IA?
The median effective property tax rate in Grundy County is 1.07% of home value, below the Iowa median of 1.43% and above the national median of 0.98%. The median homeowner pays $1,929 a year on a median home value of $180,500 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Grundy County?
About $4,280 per year at the county's median effective rate of 1.07%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does Grundy County compare with the rest of Iowa?
Grundy County ranks 91 of 99 Iowa counties by effective rate. The Iowa median is 1.43% and the median bill is $2,795.