Adams County property tax rates, 2026–27

Combined rates for each of 16 places, lowest first. Each page shows the rate of every taxing unit that makes up the total.

Lowest combined rate
24.76622Mercer Township
Highest combined rate
43.12681Corning
Places
162026–27
Mercer Township 3 24.76622 29.39186
Union Township 3 24.95491 29.58055
Prescott Township 2 25.01494 28.15896
Carl Township 2 25.10092 28.24494
Grant Township 3 25.12465 29.75029
Colony Township 3 25.26317 25.34095
Lincoln Township 4 25.50155 27.91682
Douglas Township 2 27.61345 27.98725
Nodaway Township 2 28.03409 28.40789
Washington Township 1 28.08446 28.08446
Jasper Township 1 28.22881 28.22881
Quincy Township 1 28.34277 28.34277
Carbon 1 32.55297 32.55297
Nodaway 1 34.59459 34.59459
Prescott 1 37.15902 37.15902
Corning 1 43.12681 43.12681

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

Source: Iowa Department of Management, Consolidated Property Tax Rates by Tax District, FY2027. Retrieved 2026-10-27.

Property tax in Adams County

In 2026–27, combined rates in Adams County run from 24.76622 in Mercer Township to 43.12681 in Corning, per $1,000 of taxable value. On an assessed value of $300,000, that's $7,430 to $12,938 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.