Town · Wisconsin
Town of Harmony, Rock County, Wisconsin
Harmony (town), Rock County, town, in Rock County, Wisconsin. Harmony (town), Rock County had 2,608 residents on July 1, 2025 by the Census Bureau's estimate, up 2.1% since 2020; the 2020 Census counted 2,569 and the ACS 2020-2024 5-year estimates put it at 2,550 (±28). GEOID 5510532700.
Residents, July 2025 estimate
2,608
Census Bureau estimate (no margin published)
2020 Census count: 2,569 · ACS 2020-2024: 2,550 ±28
Median household income
$122,852
±$14,606 (90% margin)
Wisconsin: $77,485
Median home value
$357,800
±$33,042 (90% margin)
Wisconsin: $266,500
Median gross rent
$1,292
±$398 (90% margin)
Wisconsin: $1,087
Where is Harmony (town), Rock County and what county is it in?
Harmony (town), Rock County is a town in Rock County, Wisconsin. It covers 21.5 square miles of land, 120 residents per square mile in 2020.
Harmony (town), Rock County is in the Janesville-Beloit, WI metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Harmony (town), Rock County, and is it growing?
The Census Bureau estimates that 2,608 people lived in Harmony (town), Rock County on July 1, 2025, up 2.1% since 2020, faster than Wisconsin (+1.3%). The 2020 Census counted 2,569 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 2,550 (±28).
| Measure | Harmony (town), Rock County | Rock County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 2,550±28 | 164,350 | −45 |
| Households | 939±85 | 67,201 | no clear change |
| Average household size | 2.72±0.25 | 2.41 | no clear change |
| Housing units | 1,037±111 | 71,109 | no clear change |
Harmony (town), Rock County's population since 2000
From 2,351 in 2000 to 2,608 in 2025: up 10.9%. The 2000, 2010 and 2020 figures are census counts, each for Harmony (town), Rock County as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Harmony (town), Rock County?
The median resident of Harmony (town), Rock County is 49.1 years old; 18.8% are under 18 and 21.3% are 65 or older. The largest group is non-Hispanic white residents at 83.6%, then non-Hispanic residents of two or more races at 12.0%.
| Measure | Harmony (town), Rock County | Rock County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 49.1±4.4 | 40.3 | no clear change |
| Under 18 years | 18.8%±3.6 pts | 22.4% | – |
| 65 years and over | 21.3%±5.4 pts | 17.8% | – |
| Male | 46.2%±3.4 pts | 49.8% | – |
| Hispanic or Latino (any race) | 2.5%±3.2 pts | 10.1% | – |
| White alone, not Hispanic | 83.6%±6.6 pts | 79.6% | −12.7 pts |
| Black or African American alone, not Hispanic | 0.0%±0.9 pts | 4.6% | – |
| Asian alone, not Hispanic | 0.9%±1.0 pts | 1.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.9 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.9 pts | 0.0% | – |
| Two or more races, not Hispanic | 12.0%±6.1 pts | 4.2% | – |
| Some other race alone, not Hispanic | 1.0%±1.6 pts | 0.3% | – |
| Born outside the United States | 1.1%±1.2 pts | 4.6% | – |
| Speak a language other than English at home (age 5+) | 2.7%±2.0 pts | 8.8% | – |
| Civilian veterans (age 18+) | 6.9%±2.4 pts | 6.9% | – |
| With a disability | 13.0%±4.2 pts | 12.8% | – |
| No health insurance coverage | 1.3%±1.1 pts | 5.5% | – |
| High school graduate or higher (age 25+) | 96.3%±2.2 pts | 92.6% | – |
| Bachelor's degree or higher (age 25+) | 26.8%±5.3 pts | 25.8% | −10.0 pts |
| Graduate or professional degree (age 25+) | 13.2%±4.0 pts | 8.1% | – |
| Lived in the same house a year earlier | 92.7%±5.4 pts | 90.6% | – |
| Moved from another state in the past year | 0.3%±0.7 pts | 1.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Harmony (town), Rock County earn?
Half of Harmony (town), Rock County's 939 households earn less than $122,852 a year (±$14,606), against $75,673 in Rock County and $77,485 in Wisconsin. In 2015-2019 the median was $106,494 in 2024 dollars, so it rose by $16,358 after inflation. 3.8% of residents live below the poverty line.
| Measure | Harmony (town), Rock County | Rock County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $122,852±$14,606 | $75,673 | +$16,358 |
| Mean household income | $145,835±$23,728 | $91,984 | – |
| Per capita income | $52,192±$8,526 | $38,536 | no clear change |
| People below the poverty line | 3.8%±2.4 pts | 9.3% | – |
| Children under 18 below the poverty line | 1.7%±2.6 pts | 12.9% | – |
| Households receiving SNAP | 1.8%±1.8 pts | 12.9% | – |
| Households with a computer | 93.7%±4.5 pts | 95.5% | – |
| Households with a broadband subscription | 93.9%±3.5 pts | 90.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Harmony (town), Rock County?
Owners occupy 96.8% of Harmony (town), Rock County's occupied homes and renters 3.2%. The median owner-occupied home is valued at $357,800 by its owner (±$33,042). The median renter pays $1,292 a month including utilities.
| Measure | Harmony (town), Rock County | Rock County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $357,800±$33,042 | $231,600 | +$66,372 |
| Median gross rent | $1,292±$398 | $1,037 | no clear change |
| Renters paying 35% or more of income on rent | 0.0%±48.4 pts | 35.0% | – |
| Median monthly owner costs, with a mortgage | $1,889±$269 | $1,538 | – |
| Owner-occupied homes | 96.8%±2.4 pts | 71.2% | no clear change |
| Renter-occupied homes | 3.2%±2.4 pts | 28.8% | – |
| Housing units | 1,037±111 | 71,109 | no clear change |
| Homeowner vacancy rate | 7.8%±7.3 pts | 1.0% | – |
| Rental vacancy rate | 0.0%±45.1 pts | 3.7% | – |
| Single-family detached homes | 96.9%±2.8 pts | 74.4% | – |
| Mobile homes | 1.4%±2.0 pts | 2.6% | – |
| Built 2020 or later | 5.3%±6.8 pts | 1.2% | – |
| Built 2010 to 2019 | 5.7%±3.8 pts | 4.3% | – |
| Built 1939 or earlier | 6.6%±3.2 pts | 19.2% | – |
| Households with no vehicle | 2.2%±2.0 pts | 6.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Harmony (town), Rock County building?
Builders took permits for 6 new housing units in Harmony (town), Rock County in 2025 (6 in single-family houses), 2.3 per 1,000 residents against 4.3 across Wisconsin.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Harmony (town), Rock County work and get to work?
84.4% of Harmony (town), Rock County's workers drive alone and 6.0% work from home. The average trip to work takes 25.2 minutes.
| Measure | Harmony (town), Rock County | Rock County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.0%±6.2 pts | 65.2% | – |
| Unemployment rate | 2.5%±1.7 pts | 3.8% | – |
| Drove alone to work | 84.4%±5.7 pts | 80.1% | – |
| Carpooled | 4.8%±3.2 pts | 7.2% | – |
| Public transportation | 0.0%±1.9 pts | 0.5% | – |
| Walked | 2.4%±2.1 pts | 1.7% | – |
| Worked from home | 6.0%±3.1 pts | 9.2% | no clear change |
| Mean travel time to work | 25.2 min±4.4 | 23.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Harmony (town), Rock County?
No census tract lies mostly in Harmony (town), Rock County; 5 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 13.03Rock County | 4,683 | $124,925 |
| Tract 13.02Rock County | 6,342 | $83,944 |
| Tract 13.05Rock County | 3,923 | $104,306 |
| Tract 12.02Rock County | 5,774 | $89,012 |
| Tract 13.06Rock County | 5,054 | $54,574 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Harmony (town), Rock County) · Census block assignment files
How does Harmony (town), Rock County compare with other places in Wisconsin?
By the Census Bureau's July 2025 estimates, Harmony (town), Rock County is the 3,985th-most populous of the 16,079 U.S. towns and townships that have one and the 123rd-most populous of 1,239 in Wisconsin.
Harmony (town), Rock County ranks 61st of 914 places in Wisconsin with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 123rd | 1,239 |
| Growth 2020-2025 (PEP) | 273rd | 884 |
| Residents per square mile | 458th | 914 |
| Median household income | 61st | 914 |
| Per capita income | 176th | 911 |
| Median home value | 202nd | 913 |
| Median gross rent | 139th | 825 |
| Poverty rate | 603rd | 706 |
| Bachelor's degree or higher | 460th | 914 |
| Median age | 270th | 914 |
| Owner-occupied share | 28th | 914 |
| Work from home | 759th | 827 |
| Travel time to work | 347th | 914 |
Harmony (town), Rock County's figures with every place in Wisconsin (CSV)
Every place in Wisconsin, sortable · Compare Harmony (town), Rock County with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Harmony (town), Rock County?
24 of the 57 figures for Harmony (town), Rock County on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Harmony (town), Rock County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.