The Grimes Brief

Guide · Property taxes

How your Grimes property tax bill actually works, and who gets what.

Property tax is the number that surprises new homeowners most, partly because the bill is a stack of separate levies, not one. Here is how it works in Grimes, in plain English.

The short version

Your bill is a stack: the city, the county, the school district, and a few others. The City of Grimes portion is about $10.70 per $1,000 of taxable value, and the city collects only about 30% of your total bill. The rest goes mostly to schools and the county.

The city share

The Grimes city levy

For the current fiscal year, the City of Grimes levy is roughly $10.70 per $1,000 of taxable valuation. That is only the city's slice. The city itself notes it receives about 30 percent of a resident's total property tax, so do not mistake the city rate for your whole bill.

The county split

Polk or Dallas, depending on your address

Grimes straddles a county line. Most of the city is in Polk County and the west side is in Dallas County. Your total consolidated tax rate, and where you pay, follows your county of residence, so two Grimes homes of the same value can have slightly different bills. For the full consolidated rate on a specific parcel, check your county:

Your assessment

How the taxable value is set

Iowa taxes are based on your assessed value adjusted by a statewide rollback (a percentage that reduces taxable value, set each year), then multiplied by the consolidated levy. If you think your assessment is off, both county assessors have a protest window in the spring. Check your county assessor's site for the current-year dates.

Know what you owe, and why

The Grimes Brief tracks city budget and levy news so a rate change never sneaks up on you. Free, weekly.

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Sources: City of Grimes budget documents (grimesiowa.gov) for the city levy; Polk County and Dallas County Assessor and Treasurer offices for assessments and consolidated rates. Figures are approximate and change yearly, confirm the current rate for your parcel with your county. Preview build, September 2026.