Town guide

Sullivan Town, Wisconsin

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
Sold over asking59%Median of 2 ZIP codes

ZIP codes in Sullivan Town

4 ZIP codes, 2 shared with neighboring towns

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

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  • History
  • What it’s like to live there
  • Getting around
  • Things to do

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Around Sullivan Town

Distances

Nearest major airportGeneral 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

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.

Sullivan Town population by census2000: 2,124, 2010: 2,208, 2020: 2,2952,12420002,20820102,2952020

Jefferson County, 1900–2020

Jefferson County population, 1900 to 20201900: 34,789, 1910: 34,306, 1920: 35,022, 1930: 36,785, 1940: 38,868, 1950: 43,069, 1960: 50,094, 1970: 60,060, 1980: 66,152, 1990: 67,783, 2000: 74,021, 2010: 83,686, 2020: 84,90035K’00’1035K’20’3039K’40’5050K’60’7066K’80’9074K’00’1085K’20

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.

Average high and low temperature and precipitation by month near Sullivan TownJan: high 27°F, low 11°F, 1.7 in; Feb: high 31°F, low 14°F, 1.8 in; Mar: high 43°F, low 24°F, 2.1 in; Apr: high 56°F, low 35°F, 3.9 in; May: high 69°F, low 46°F, 4.3 in; Jun: high 78°F, low 56°F, 4.9 in; Jul: high 82°F, low 60°F, 4.1 in; Aug: high 80°F, low 59°F, 4 in; Sep: high 73°F, low 51°F, 3.5 in; Oct: high 60°F, low 40°F, 3 in; Nov: high 45°F, low 28°F, 2.4 in; Dec: high 33°F, low 17°F, 2.1 in27°11°Jan1.731°14°Feb1.843°24°Mar2.156°35°Apr3.969°46°May4.378°56°Jun4.982°60°Jul4.180°59°Aug4.073°51°Sep3.560°40°Oct3.045°28°Nov2.433°17°Dec2.1Rain and melted snow, inches

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:

Largest industries in Jefferson CountyManufacturing: 9,608 jobs; Health care and social assistance: 3,912 jobs; Retail trade: 3,814 jobs; Hotels and restaurants: 2,711 jobs; Wholesale trade: 2,219 jobs; Construction: 1,504 jobs; Other services: 1,476 jobs; Transportation and warehousing: 1,031 jobsManufacturing 30% Health care and social assistance 12% Retail trade 12% Hotels and restaurants 9% Wholesale trade 7% Construction 5% Other services 5% Transportation and warehousing 3%

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

Dentists1
Physical and occupational therapists1
Chiropractors1

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.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Schools in Sullivan Town

Public schools here are run by Jefferson School District. Check each district’s attendance zones for a specific address.

Public schools (1)
SchoolGradesStudentsTypeDistance
Sullivan ElementarySullivanPre-K–5144Public1.8 mi
Private schools (1)
SchoolGradesStudentsAffiliationDistance
St Peters Ev. LutheranHelenvillePre-K–855Wisconsin Evangelical Lutheran Synod4.8 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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Towns near Sullivan Town

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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.