Boone County property tax rates, 2026–27

Combined rates for each of 29 places, lowest first. Each page shows the rate of every taxing unit that makes up the total.

Lowest combined rate
18.39679Garden Township
Highest combined rate
40.70331Madrid
Places
292026–27
Garden Township 4 18.39679 28.33965
Douglas Township 2 18.50681 26.40042
Harrison Township 5 18.55372 28.16712
Jackson Township 3 18.72205 28.33545
Worth Township 2 18.75124 26.6323
Des Moines Township 2 18.77197 26.65303
Colfax Township 1 18.79824 18.79824
Grant Township 1 19.00899 19.00899
Dodge Township 5 19.03177 26.91283
Amaqua Township 3 19.08953 23.65824
Yell Township 3 19.20161 26.62285
Pilot Mound Township 2 19.41143 23.27698
Cass Township 2 22.63325 28.05609
Union Township 3 22.68042 27.8348
Peoples Township 3 22.85956 28.2824
Beaver 1 22.91498 22.91498
Beaver Township 1 22.93261 22.93261
Marcy Township 2 23.13353 26.68922
Boxholm 1 24.45265 24.45265
Luther 1 24.71335 24.71335
Pilot Mound 1 24.87463 24.87463
Fraser 2 25.14511 29.01066
Berkley 2 26.3306 31.48498
Boone 2 31.00472 38.88578
Ogden 1 31.19724 31.19724
Sheldahl 1 33.09365 33.09365
Slater 1 38.6138 38.6138
Woodward 1 39.67459 39.67459
Madrid 1 40.70331 40.70331

Rates are per $1,000 of taxable value, 2026–27.

Source: Iowa Department of Management, Consolidated Property Tax Rates by Tax District, FY2027. Retrieved 2026-10-26.

Property tax in Boone County

In 2026–27, combined rates in Boone County run from 18.39679 in Garden Township to 40.70331 in Madrid, per $1,000 of taxable value. On an assessed value of $300,000, that's $5,519 to $12,211 a year before credits or relief.

Choose a place above to see each rate that makes up its total and estimate a bill, or read the Iowa property tax guide.