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Johnstown town, Wisconsin

Johnstown town profile, demographic data, and geographic information.

Johnstown town is a geographic entity located in Rock County, Wisconsin. As of official census estimates, it has a reported population of 768. The land area covers 36.04 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 768 — 2025 / Census
Median Age 55.3 yrs ±3.9 2020-2024 / Census ACS 5-Year 2024
Total Households 287 ±39 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 305 ±40
Occupied Housing Units 287 ±39
Vacant Housing Units 18 ±17
Median Home Value $339,800 ±$27,733
Median Gross Rent $1,094 ±$198
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $84,609 ±$10,294
Per Capita Income $54,024 ±$8,059
Poverty Rate 5.5% ±2.9%
Population Below Poverty Level 35 ±19
Unemployment Rate 3.6% ±3%
Civilian Labor Force, Employed 377 ±78
Broadband Internet Rate 86.1% ±4.5%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
TOWN OF JOHNSTOWN
GUS Population: 766 (2024)
ID: 177676
Township Official Local Government
Contact: TOWN CHAIR
11550 E COUNTY ROAD A, AVALON WI 53505-9707
GUS Population: 165,461 (2024)
ID: 177072
County Official County Government
Contact: PLANNER III
51 S MAIN ST, JANESVILLE WI 53545-3978

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-12 Janesville, WI
Regular School Nearby PK-05 Janesville, WI
Regular School Nearby 06-08 Beloit, WI
Regular School Nearby KG-05 Fort Atkinson, WI
Regular School Nearby PK Beloit, WI
Alternative School Nearby 06-12 Beloit, WI
Regular School Nearby PK-12 Beloit, WI
Regular School Nearby 09-12 Walworth, WI
Regular School Nearby PK-06 Clinton, WI
Regular School Nearby 07-08 Clinton, WI
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
University of Wisconsin-Whitewater
College 9.4 mi away 800 W Main St, Whitewater, WI, 53190-1790
2624721234
MILTON PUBLIC LIBRARY
Library 6.8 mi away 430 E. HIGH ST., #100, MILTON, WI, 53563
(608) 868-7462
Tricoci University of Beauty Culture-Janesville
College Vocational 11.2 mi away 2310 W. Court Street, Janesville, WI, 53548
6305283330
HEDBERG PUBLIC LIBRARY EXPRESS
Library 8.4 mi away 2500 MILTON AVE. SUITE 120, JANESVILLE, WI, 53545
(608) 758-5804
Blackhawk Technical College
College 12.6 mi away 6004 South County Road G, Janesville, WI, 53547-5009
6087586900
IRVIN L. YOUNG MEMORIAL LIBRARY
Library 9.4 mi away 431 W. CENTER ST., WHITEWATER, WI, 53190
(262) 473-0530
Beloit College
College 17.7 mi away 700 College St, Beloit, WI, 53511-5595
6083632000
HEDBERG PUBLIC LIBRARY
Library 9.7 mi away 316 S. MAIN ST., JANESVILLE, WI, 53545
(608) 758-6600
First Class Cosmetology School
College Vocational 18.2 mi away 306 State Street, Beloit, WI, 53511-0000
6083625216
HEDBERG PUBLIC LIBRARY BOOKMOBILE
Library 9.7 mi away 316 S. MAIN ST., JANESVILLE, WI, 53545
(608) 758-6600
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at DELAVAN WWTP, WI US, located 10.4 miles from Johnstown town. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 29.2° 13.4° 21.3° 1.56" —
February 32.6° 16.0° 24.3° 1.67" —
March 43.7° 24.9° 34.3° 1.97" —
April 57.0° 35.7° 46.4° 3.66" —
May 68.8° 46.9° 57.9° 4.19" —
June 79.0° 56.8° 67.9° 4.96" —
July 82.9° 60.8° 71.9° 3.79" —
August 81.1° 58.9° 70.0° 3.87" —
September 74.2° 51.2° 62.7° 3.74" —
October 60.8° 39.5° 50.2° 2.89" —
November 46.2° 28.9° 37.6° 2.61" —
December 34.5° 19.6° 27.1° 1.83" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Lake Lorraine CDP CDP 5.0 mi —
Milton city City 6.7 mi —
Turtle Lake CDP CDP 8.0 mi —
Janesville city City 9.3 mi —
Whitewater city City 9.7 mi —
Allens Grove CDP CDP 10.2 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 5510538450. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.