Hartford City (Washington County) is a city in Washington County, Wisconsin, home to about 15,821 people across 7.9 square miles. Its ZIP code is 53027, and parts of 53086 are in Hartford City (Washington County) too.
Homes sold for a median of $222 per square foot in the three months ending August 2026, a seller’s market.
Mostly Hartford City (Washington County); also Hartford Town and Erin
Mostly Slinger; part is in Hartford City (Washington County)
Each card is that ZIP code’s whole market, including any part outside Hartford City (Washington County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hartford City (Washington County)’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | General Mitchell International Airport (MKE)35 miles away |
|---|---|
| Nearest city of 250,000+ | Milwaukee, WI27 miles away |
| Nearest city of 1 million+ | Chicago, IL108 miles away |
Straight-line distances from the center of Hartford City (Washington County); driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Hartford City (Washington County) had 15,617 residents in the 2020 census, up 43% since 2000.
It’s the 56th largest of 1,889 towns in Wisconsin by population.
Washington County grew from 23,589 residents in 1900 to 136,761 in 2020.
Washington County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 9°F. About 34.1 inches of rain and melted snow fall in a typical year, with about 36 inches of snow.
Source: NOAA 1991–2020 climate normals, Hartford Wwtp, WI weather station (2 miles away).
54,404 jobs at 3,427 businesses in Washington County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
185 doctors and other health care providers list an office in Hartford City (Washington County).
Nearest hospitals
Providers with an office here
| Primary care doctors | 31 |
|---|---|
| Specialist doctors | 39 |
| Dentists | 15 |
| Nurse practitioners and physician assistants | 42 |
| Mental health providers | 10 |
| Physical and occupational therapists | 34 |
| Optometrists | 5 |
| Chiropractors | 9 |
| Pharmacies | 5 |
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.
Parks (18 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 2 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.
Established in 1844.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Slinger School District, Erin School District, Hartford J1 School District and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Addison ElementaryHartford | Pre-K–5 | 441 | Public | 5.3 mi |
| Erin ElementaryHartford | Pre-K–8 | 399 | Public | 4.6 mi |
| Lincoln ElementaryHartford | Pre-K–5 | 460 | Public | 0.9 mi |
| Rossman ElementaryHartford | Pre-K–5 | 422 | Public | 0.6 mi |
| Central MiddleHartford | 6–8 | 419 | Public | 1.4 mi |
| Hartford HighHartford | 9–12 | 1,324 | Public | 1.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Peace Lutheran SchoolHartford | Pre-K–8 | 247 | Wisconsin Evangelical Lutheran Synod | 1.2 mi |
| St Kilian SchoolHartford | Pre-K–8 | 46 | Roman Catholic | 0.9 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 Slinger, Hartford Town, Erin, Polk, Addison and Herman Town (Dodge 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.