Sullivan Town is a town in Jefferson County, Wisconsin, home to about 2,029 people across 35 square miles. Its ZIP codes are 53137 and 53178, and parts of 53118 and 53156 are in Sullivan Town too.
Homes sold for a median of $245 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Population2,02958 per sq mi
Median home value$307,300Census, as estimated by owners
Price per sq ft$245Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside Sullivan Town. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Sullivan Town guide is on the way
We’re writing up Sullivan Town’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Sullivan Town
Distances
Nearest major airport
General Mitchell International Airport (MKE)36 miles away
Nearest city of 250,000+
Milwaukee, WI33 miles away
Nearest city of 1 million+
Chicago, IL93 miles away
Straight-line distances from the center of Sullivan Town; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Sullivan Town
U.S. Representative · Wisconsin’s 5th DistrictScott Fitzgerald (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Sullivan Town had 2,295 residents in the 2020 census, up 8% since 2000.
It’s the 439th largest of 1,889 towns in Wisconsin by population.
Jefferson County grew from 34,789 residents in 1900 to 84,900 in 2020.
Jefferson County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 82°F in summer, and winter lows average 11°F. About 37.8 inches of rain and melted snow fall in a typical year, with about 51 inches of snow.
Source: NOAA 1991–2020 climate normals, Sullivan 3se, WI weather station (3 miles away).
Jobs in Jefferson County
31,584 jobs at 2,058 businesses in Jefferson County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
3 doctors and other health care providers list an office in Sullivan Town’s ZIP codes.
Nearest hospitals
Oconomowoc Memorial HospitalGeneral hospital · emergency room · CMS rating 5 of 5 · Oconomowoc9.6 miles
Aurora Medical Center - SummitGeneral hospital · emergency room · CMS rating 5 of 5 · Summit10.0 miles
Fort Memorial HospitalGeneral hospital · emergency room · CMS rating 4 of 5 · Fort Atkinson12.1 miles
Providers with an office here
Dentists
1
Physical and occupational therapists
1
Chiropractors
1
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Places in and around Sullivan Town
Parks (1 nearby)
Rome Pond Park · 7 acres0.9 mi
Counts are within about 4 miles of the center of town.
Public schools here are run by Jefferson School District. Check each district’s attendance zones for a specific address.
Public schools(1)
School
Grades
Students
Type
Distance
Sullivan ElementarySullivan
Pre-K–5
144
Public
1.8 mi
Private schools(1)
School
Grades
Students
Affiliation
Distance
St Peters Ev. LutheranHelenville
Pre-K–8
55
Wisconsin Evangelical Lutheran Synod
4.8 mi
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Ottawa, Dousman, Palmyra Village, Genesee, Palmyra Town, Concord, Sullivan Village, Jefferson Town (Jefferson County) and Farmington Town (Jefferson County).
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.