51003 Property Tax Rate

Property owners in ZIP code 51003 (Alton, Iowa) pay a median of $2,568/year in property taxes on homes valued at $226,300. This translates to an effective tax rate of 1.13%, which is 11% below the Iowa state average of 1.28%.

The monthly property tax burden for a median-valued home in 51003 is approximately $214, which factors into escrow payments on mortgages. This ZIP code is located within Sioux County. This is $503 more than the Iowa average of $2,065/year.

Compared to similar ZIP codes in Iowa, 51003 has lower property taxes. ZIP codes with similar effective rates include 52346 (1.13%) and 51562 (1.14%).

In Alton, property taxes represent approximately 3.0% of the median household income of $85,909, providing context for the relative tax burden on homeowners in this area.

Iowa uses full market value assessment with no annual increase cap, so the Sioux County Assessor can raise your taxes each year based on property appreciation or revaluation. Homeowners with household income under $32,400 qualify for the Homestead Property Tax Credit (HPTC), which reduces taxes by up to $1,375 annually and is based on your home value and income level. File your HPTC application with the Sioux County Assessor's office before your first tax bill arrives to ensure you receive the maximum credit.