How are property tax rates determined in Iowa?

Property tax rates in Iowa are set by each taxing district (municipality, school district, park district, library, etc.) based on their annual levy (the amount of tax revenue they need). The rate is calculated by dividing the levy by the total assessed value of all property in the district.

What is the composite tax rate?

The composite tax rate is the sum of all overlapping taxing district rates that apply to a specific property. A typical property may be taxed by several overlapping districts. The composite rate determines your total tax bill when multiplied by your property's assessed value.

Why do tax rates vary within the same town?

Properties within the same municipality can have different composite rates because overlapping districts (school, park, fire, library) have different boundaries. A home in one school district may have a different rate than a home two blocks away in a different school district.

Mount Vernon, IA Property Tax Rate 2026 — Full Breakdown by District

Showing latest tax year with year-over-year changes. Full rate history available with a paid plan. See products & pricing →

Property Tax — Tax Year 2025 (payable 2026)i

IA Dept of Management Property Tax

Composite Ratei

2.82%–3.85%+51.8%YoY

Varies by school district

Municipal Portioni

0.0000%0% of total

Effective Ratei

1.31%–1.79%

Est. Annual Taxi

$3K–$4K

Median Home Valuei

$245,200

Rate varies by school district. Your actual rate depends on which school district your property falls in.

Rate Trend — click a year to explorei

20242025

Municipal

Other Districts

Where Your Tax Dollar Goesi

$1.16 MT VERNON CITY/MT VERNON SCH/STONEROOK TIF BASE

$1.16 MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF BASE

$1.16 MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF INCREMENT

$1.16 MT VERNON CITY/MT VERNON SCH/STONEBROOK PHASE 3 TIF ORD 11-15-2021A BASE

$1.16 MT VERNON CITY/MT VERNON SCH/MT. VERNON CITY/

$1.16 MT VERNON CITY/MT VERNON SCH/STONEBROOK PHASE 3 TIF ORD 11-15-2021A INCREMENT

$1.16 MT VERNON CITY/MT VERNON SCH

$1.16 MT.VERNON CITY/MT VERNON SCHOOL/AMEND # 2 UR

$1.16 MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS TIF BASE

$1.16 MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS TIF INCR

$1.16 MT VERNON CITY/MT VERNON SCH/STONEBROOK TIF INCR

$0.84 MT VERNON CITY AG/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF BASE

$0.84 MT VERNON CITY AG/MT VERNON SCH/MT. VERNON CI

$0.84 MT VERNON CITY AG/MT VERNON SCH

$0.84 MT VERNON CITY AG/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF INCREMENT

Estimated Tax by Home Valuei

$100K

$940–$1,284

$150K

$1,410–$1,926

$200K

$1,880–$2,569

$250K

$2,350–$3,211

$300K

$2,820–$3,853

$350K

$3,290–$4,495

$400K

$3,759–$5,137

Highlighted value is closest to median home value ($245K)

15 Overlapping Taxing Districtsi

MT VERNON CITY/MT VERNON SCH/STONEROOK TIF BASE

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF BASE

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF INCREMENT

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/STONEBROOK PHASE 3 TIF ORD 11-15-2021A BASE

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/MT. VERNON CITY/

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/STONEBROOK PHASE 3 TIF ORD 11-15-2021A INCREMENT

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH

115.5%3.8532%

MT.VERNON CITY/MT VERNON SCHOOL/AMEND # 2 UR

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS TIF BASE

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/SPRING MEADOW HEIGHTS TIF INCR

115.5%3.8532%

MT VERNON CITY/MT VERNON SCH/STONEBROOK TIF INCR

115.5%3.8532%

MT VERNON CITY AG/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF BASE

84.5%2.8199%

MT VERNON CITY AG/MT VERNON SCH/MT. VERNON CI

84.5%2.8199%

MT VERNON CITY AG/MT VERNON SCH

84.5%2.8199%

MT VERNON CITY AG/MT VERNON SCH/SPRING MEADOW HEIGHTS PHASE 2 TIF INCREMENT

84.5%2.8199%