No, and this one surprises almost everybody. Newton's consolidated property tax rate is 39.53 per $1,000 of taxable value, and Ankeny with Ankeny schools is 36.68, so Newton's rate is actually higher. Colfax at 40.26 is higher than every city in Polk County except Des Moines itself. Your tax bill usually does drop when you move east, but it drops because the house is assessed for less, not because the county is charging you a lower rate.

Here is how an Iowa bill actually gets built, because most online estimates skip half of it. Start with the assessed value, multiply by the state rollback (44.5345% for 2025 assessments, the ones you pay in September 2026 and March 2027), divide by 1,000, then multiply by your consolidated levy rate. That rate is county plus city plus school plus a few smaller pieces, which means your school district moves your bill as much as your city does. Then subtract the homestead credit if it is your primary residence, and know that you have to file for it with the assessor by July 1. It is not automatic when you buy.

Here is the trade-off, stated plainly: rate versus price. Jasper County hands you a lower purchase price and a higher rate. Polk County hands you a lower rate and a higher purchase price. Most buyers assume that moving east gets them both, and it does not. You are buying the lower price, and the higher rate quietly takes a piece of that savings back every year for as long as you own the house.

What I typically see in Newton is that buyers compare tax rates when they should be comparing tax bills, or they look up an average tax bill for a town when the only number that matters is the one attached to that specific parcel. Two houses on the same street can sit in different school districts. A parcel on the edge of town can sit in a different county than the mailing address suggests. A town average tells you almost nothing about the house you are actually writing an offer on.

As one example, put a $300,000 assessed home in Ankeny with Ankeny schools next to a $300,000 assessed home in Newton. With the homestead credit, the Ankeny bill runs about $4,722 a year and the Newton bill runs about $5,089, so Newton costs roughly $367 more for the identical value. Now make it realistic. If that Newton house assesses at $200,000 instead, the bill is about $3,329, which saves you roughly $1,393 a year against Ankeny. That saving is real and it matters to a payment. Just understand that every dollar of it came from the lower assessed value while the rate worked against you the entire time.

Two local details worth real money. Mitchellville is split by the Polk and Jasper county line, and the Jasper side with Colfax-Mingo schools runs about $165 a year less on a $250,000 assessed home than the Polk side with Southeast Polk. And Lambs Grove is its own incorporated city sitting right next to Newton at a rate of 33.21 against Newton's 39.53, which works out to about $532 a year on a $200,000 assessed home. Two houses a few minutes apart can land in completely different places on the tax bill. So ask which city, which school district, and which county a parcel sits in before you assume anything, and check the current rate sheet, because both counties reset these numbers every single year and the rollback changes annually too. Special assessments, abatements and TIF arrangements are their own separate line and they catch buyers off guard at closing. I am a REALTOR, not a tax advisor, so confirm anything that drives a real decision with the county assessor or your own tax professional.

If you want a way to weigh trade-offs like this side by side before you settle on a town, my Buyer Quick Reference Chart lays them out. Or send me an address and I will run the actual number for that parcel and send you the district code with it so you can check my work.

Related Resources: Is Newton Worth the Commute for First-Time Buyers Working in Des Moines? and What Are the Best Newton Neighborhoods for First-Time Buyers?.

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Written by Jason Huffey, REALTOR with RE/MAX Revolution (License S73436000), serving Newton and the greater Des Moines metro. Call or text (515) 606-1227. The Best Is Yet To Come.