How are property tax rates determined in Iowa?

Property tax rates in Iowa are set by each taxing district (municipality, school district, park district, library, etc.) based on their annual levy (the amount of tax revenue they need). The rate is calculated by dividing the levy by the total assessed value of all property in the district.

What is the composite tax rate?

The composite tax rate is the sum of all overlapping taxing district rates that apply to a specific property. A typical property may be taxed by several overlapping districts. The composite rate determines your total tax bill when multiplied by your property's assessed value.

Why do tax rates vary within the same town?

Properties within the same municipality can have different composite rates because overlapping districts (school, park, fire, library) have different boundaries. A home in one school district may have a different rate than a home two blocks away in a different school district.

Grimes, IA Property Tax Rate 2026 — Full Breakdown by District

Showing latest tax year with year-over-year changes. Full rate history available with a paid plan. See products & pricing →

Property Tax — Tax Year 2025 (payable 2026)i

IA Dept of Management Property Tax

Composite Ratei

2.46%–4.03%+52.3%YoY

Varies by school district

Municipal Portioni

0.0000%0% of total

Effective Ratei

1.14%–1.87%

Est. Annual Taxi

$3K–$6K

Median Home Valuei

$304,700

Rate varies by school district. Your actual rate depends on which school district your property falls in.

Rate Trend — click a year to explorei

20242025

Municipal

Other Districts

Where Your Tax Dollar Goesi

$1.24 GRIMES CITY/DC-GRIMES SCH

$1.24 GRIMES CITY/DC-GRIMES SCH/87 & 90 TIF BASE

$1.24 GRIMES CITY/DC-GRIMES SCH/22 ORD 773 AMD TIF BASE

$1.24 GRIMES CITY/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF BASE

$1.24 GRIMES CITY/DC-GRIMES SCH/17 ORD 690 AMD TIF BASE

$1.24 GRIMES CITY/DC-GRIMES SCH/22 ORD 773 AMD TIF INCR

$1.24 GRIMES CITY/DC-GRIMES SCH/92 AMD TIF BASE

$1.24 GRIMES CITY/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF INCR

$1.22 GRIMES CITY/URB SCH/DC-G SCH DBT/87 & 90 TIF

$1.22 GRIMES CITY/URB SCH/DC-GRIMES SCH DEBT

$1.10 GRIMES CITY/JOHNSTON SCH/URB SS

$1.09 GRIMES CITY/JOHNSTON SCH/17 ORD 690 AMD TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH

$1.09 GRIMES CITY/JOHNSTON SCH/17 ORD 687 AMD TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH/87 & 90 TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH/03 AMD TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH/18 ORD 712 NOV ADDITION AMD TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH/18 ORD 712 NOV ADDITION AMD TIF INCR

$1.09 GRIMES CITY/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF BASE

$1.09 GRIMES CITY/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF INCR

$1.09 GRIMES CITY/DALLAS CENTER-GRIMES SCH

$1.00 GRIMES CITY AG/DC-GRIMES SCH/17 ORD 690 AMD TIF BASE

$1.00 GRIMES CITY AG/DC-GRIMES SCH/92 AMD TIF BASE

$1.00 GRIMES CITY AG/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF BASE

$1.00 GRIMES CITY AG/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF INCR

$1.00 GRIMES CITY AG/DC-GRIMES SCH

$1.00 GRIMES CITY AG/DC-GRIMES SCH/22 ORD 773 AMD TIF BASE

$1.00 GRIMES CITY AG/DC-GRIMES SCH/22 ORD 773 AMD TIF INCR

$1.00 GRIMES CITY AG/DC-GRIMES SCH/87 & 90 TIF BASE

$0.98 GRIMES CITY AG/URB SCH/DC-GRIMES SCH DEBT

$0.98 GRIMES CITY AG/URB SCH/DC-G SCH DBT/87 & 90 T

$0.91 GRIMES CITY EXEMPT 23-32/DC-GRIMES SCH

$0.91 GRIMES CITY EXEMPT 20-29 AG/DC-GRIMES SCH

$0.91 GRIMES CITY EXEMPT 23-32 AG/DC-GRIMES SCH

$0.91 GRIMES CITY EXEMPT 20-29/DC-GRIMES SCH

$0.85 GRIMES CITY AG/JOHNSTON SCH/17 ORD 687 AMD TIF BASE

$0.85 GRIMES CITY AG/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF INCR

$0.85 GRIMES CITY AG/JOHNSTON SCH

$0.85 GRIMES CITY AG/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF BASE

$0.85 GRIMES CITY AG/JOHNSTON SCH/03 AMD TIF BASE

$0.85 GRIMES CITY AG/JOHNSTON SCH/87 & 90 TIF BASE

$0.85 GRIMES CITY AG/JOHNSTON SCH/17 ORD 690 AMD TIF BASE

$0.85 GRIMES CITY AG/DALLAS CENTER-GRIMES SCH

$0.76 GRIMES CITY EXEMPT 20-29/JOHNSTON SCH

$0.76 GRIMES CITY EXEMPT 20-29 AG/JOHNSTON SCH

$0.76 GRIMES CITY EXEMPT/DCG SCH/RES NO. 01-2123 (10YR 2023-2032)

$0.76 GRIMES CITY AG EXEMPT/DCG SCH/RES NO. 01-2123 (10YR 2023-2032)

Estimated Tax by Home Valuei

$200K

$1,641–$2,689

$250K

$2,051–$3,361

$300K

$2,461–$4,033

$350K

$2,871–$4,706

$400K

$3,282–$5,378

$450K

$3,692–$6,050

$500K

$4,102–$6,722

Highlighted value is closest to median home value ($305K)

47 Overlapping Taxing Districtsi

GRIMES CITY/DC-GRIMES SCH

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/87 & 90 TIF BASE

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/22 ORD 773 AMD TIF BASE

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF BASE

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/17 ORD 690 AMD TIF BASE

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/22 ORD 773 AMD TIF INCR

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/92 AMD TIF BASE

124.2%4.0337%

GRIMES CITY/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF INCR

124.2%4.0337%

GRIMES CITY/URB SCH/DC-G SCH DBT/87 & 90 TIF

121.9%3.9574%

GRIMES CITY/URB SCH/DC-GRIMES SCH DEBT

121.9%3.9574%

GRIMES CITY/JOHNSTON SCH/URB SS

110%3.5736%

GRIMES CITY/JOHNSTON SCH/17 ORD 690 AMD TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/17 ORD 687 AMD TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/87 & 90 TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/03 AMD TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/18 ORD 712 NOV ADDITION AMD TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/18 ORD 712 NOV ADDITION AMD TIF INCR

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF BASE

109.4%3.5522%

GRIMES CITY/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF INCR

109.4%3.5522%

GRIMES CITY/DALLAS CENTER-GRIMES SCH

109.2%3.5459%

GRIMES CITY AG/DC-GRIMES SCH/17 ORD 690 AMD TIF BASE

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/92 AMD TIF BASE

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF BASE

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/20 ORD 741 SEPT ADD AMD TIF INCR

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/22 ORD 773 AMD TIF BASE

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/22 ORD 773 AMD TIF INCR

100.1%3.2496%

GRIMES CITY AG/DC-GRIMES SCH/87 & 90 TIF BASE

100.1%3.2496%

GRIMES CITY AG/URB SCH/DC-GRIMES SCH DEBT

97.7%3.1733%

GRIMES CITY AG/URB SCH/DC-G SCH DBT/87 & 90 T

97.7%3.1733%

GRIMES CITY EXEMPT 23-32/DC-GRIMES SCH

90.8%2.9492%

GRIMES CITY EXEMPT 20-29 AG/DC-GRIMES SCH

90.8%2.9492%

GRIMES CITY EXEMPT 23-32 AG/DC-GRIMES SCH

90.8%2.9492%

GRIMES CITY EXEMPT 20-29/DC-GRIMES SCH

90.8%2.9492%

GRIMES CITY AG/JOHNSTON SCH/17 ORD 687 AMD TIF BASE

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF INCR

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH/22 ORD 767 JUNE ADD AMD TIF BASE

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH/03 AMD TIF BASE

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH/87 & 90 TIF BASE

85.2%2.7681%

GRIMES CITY AG/JOHNSTON SCH/17 ORD 690 AMD TIF BASE

85.2%2.7681%

GRIMES CITY AG/DALLAS CENTER-GRIMES SCH

85%2.7617%

GRIMES CITY EXEMPT 20-29/JOHNSTON SCH

76%2.4677%

GRIMES CITY EXEMPT 20-29 AG/JOHNSTON SCH

76%2.4677%

GRIMES CITY EXEMPT/DCG SCH/RES NO. 01-2123 (10YR 2023-2032)

75.8%2.4614%

GRIMES CITY AG EXEMPT/DCG SCH/RES NO. 01-2123 (10YR 2023-2032)

75.8%2.4614%