County · Wisconsin

Iowa County, Wisconsin

Iowa County, Wisconsin. Iowa County had 23,951 residents in 2025 by the Census Bureau's estimate, up 1.0% since 2020, in line with Wisconsin (+1.3%). It holds 30 places (15 cities, villages and boroughs, 14 towns and townships and 1 census-designated) and 6 census tracts. GEOID 55049.

Iowa County is one of the 4 counties of the Madison, WI metropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

23,951

Census Bureau estimate (no margin published)
2020 Census count: 23,709 · ACS 2020-2024: 23,867

Median household income

$82,182

±$5,047 (90% margin)
Wisconsin: $77,485

Median home value

$265,000

±$10,500 (90% margin)
Wisconsin: $266,500

Median gross rent

$954

±$53 (90% margin)
Wisconsin: $1,087

How many people live in Iowa County, and is it growing?

The 2020 Census counted 23,709 residents in Iowa County. The Census Bureau estimates 23,951 for July 1, 2025, up 1.0% since 2020, in line with Wisconsin (+1.3%). The 2020-2024 American Community Survey puts the population at 23,867 over 763 square miles of land.

July 2020→2021 +93 (23,809)
2021→2022 +141 (23,950)
2022→2023 −37 (23,913)
2023→2024 +62 (23,975)
2024→2025 −24 (23,951)

Iowa County in Wisconsin. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Iowa County	Wisconsin	Change since 2015-2019
Total population	23,867	5,914,872	+249
Households	10,118±161	2,479,480	+268
Average household size	2.33±0.04	2.33	no clear change
Housing units	11,108±60	2,778,572	+223

Iowa County's population since 2000

From 22,780 in 2000 to 23,951 in 2025: up 5.1%. The 2000, 2010 and 2020 figures are census counts. 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.

2000 Census 22,780
2005 (estimate) 23,405
2010 Census 23,687
2015 (estimate) 23,597
2020 Census 23,709
2025 (estimate) 23,951

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); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Iowa County?

Iowa County holds 30 places: 15 cities, villages and boroughs (incorporated places), 14 towns and townships (county subdivisions with their own government) and 1 census-designated place. The largest is Dodgeville with 5,076 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Iowa County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Dodgeville	city	4,984	5,042±16	$72,288	$242,600	6.3%	100%
Mineral Point	city	2,581	2,559±39	$81,000	$212,200	3.5%	100%
Dodgeville (town)	town	1,586	1,491±174	$116,583	$403,800	4.9%	100%
Arena (town)	town	1,486	1,504±204	$97,375	$320,900	8.1%	100%
Barneveld	village	1,331	1,416±194	$113,542	$285,200	4.6%	100%
Brigham (town)	town	1,037	1,153±175	$113,500	$423,600	10.2%	100%
Mineral Point (town)	town	974	906±165	$113,000	$342,300	3.2%	100%
Highland	village	874	867±123	$67,344	$153,500	12.8%	100%
Arena	village	844	883±124	$69,063	$194,400	2.2%	100%
Linden (town)	town	755	890±143	$70,000	$249,000	11.4%	100%
Highland (town), Iowa County	town	724	837±136	$83,646	$338,500	7.9%	100%
Ridgeway	village	624	594±96	$88,125	$202,700	16.5%	100%
Moscow (town)	town	582	617±111	$111,518	$443,600	4.1%	100%
Ridgeway (town)	town	563	508±77	$89,271	$451,600	5.3%	100%
Mifflin (town)	town	558	432±72	$94,375	$243,200	16.9%	100%
Avoca	village	553	473±95	$53,750	$115,400	19.5%	100%
Linden	village	504	553±119	$62,273	$167,500	6.7%	100%
Cobb	village	480	403±56	$79,196	$176,300	15.9%	100%
Waldwick (town)	town	460	471±84	$90,250	$306,700	4.0%	100%
Pulaski (town)	town	357	374±108	$66,250	$286,500	16.9%	100%
Eden (town), Iowa County	town	339	304±57	$89,286	$427,000	4.9%	100%
Wyoming (town), Iowa County	town	317	342±55	$61,250	$377,500	15.8%	100%
HollandaleGEOID 5535400	village	306	327±73	$71,250	$174,000	4.3%	100%
Clyde (town)	town	292	379±84	$69,792	$306,700	16.9%	100%
Rewey	village	258	238±66	$55,000	$114,800	18.6%	100%
Blanchardville	village	807	734±97	$64,531	$172,200	7.1%	24%
EdmundGEOID 5522700	CDP	129	187±88	$54,773	$157,500	30.5%	100%
Montfort	village	705	629±138	$90,000	$158,000	12.6%	10%
Muscoda	village	1,307	1,151±152	$55,833	$133,600	12.5%	5%
Livingston	village	637	555±79	$66,875	$166,000	9.6%	2%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Iowa County?

The median resident of Iowa County is 44.0 years old; 21.6% are under 18 and 20.5% are 65 or older. The largest group is non-Hispanic white residents at 92.4%, then non-Hispanic residents of two or more races at 3.3%. 1.6% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Iowa County	Wisconsin	Change since 2015-2019
Median age	44.0±0.4	40.2	+1.2
Under 18 years	21.6%±0.1 pts	21.4%	–
65 years and over	20.5%±0.1 pts	18.5%	–
Hispanic or Latino (any race)	2.3%	8.0%	+0.5 pts
White alone, not Hispanic	92.4%±0.8 pts	78.6%	−2.9 pts
Black or African American alone, not Hispanic	0.8%±0.2 pts	5.9%	no clear change
Asian alone, not Hispanic	0.9%±0.1 pts	2.9%	+0.2 pts
American Indian and Alaska Native alone, not Hispanic	0.1%±0.1 pts	0.5%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.0%	–
Two or more races, not Hispanic	3.3%±0.8 pts	3.7%	–
Some other race alone, not Hispanic	0.3%±0.2 pts	0.3%	–
Born outside the United States	1.6%±0.3 pts	5.2%	no clear change
Speak a language other than English at home (age 5+)	2.3%±0.3 pts	9.0%	–
Civilian veterans (age 18+)	5.9%±0.8 pts	6.2%	–
With a disability	12.1%±1.1 pts	12.3%	–
No health insurance coverage	3.4%±0.6 pts	5.2%	no clear change
High school graduate or higher (age 25+)	95.2%±0.8 pts	93.6%	–
Bachelor's degree or higher (age 25+)	28.4%±1.6 pts	33.4%	+3.8 pts
Graduate or professional degree (age 25+)	9.2%±0.9 pts	11.4%	–
Moved from another state in the past year	0.9%±0.5 pts	2.0%	–

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 Iowa County earn?

Half of Iowa County's 10,118 households earn less than $82,182 a year (±$5,047), against $77,485 in Wisconsin. In 2015-2019 it was $78,917 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.6% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Iowa County	Wisconsin	Change since 2015-2019
Median household income	$82,182±$5,047	$77,485	no clear change
Mean household income	$100,813±$3,341	$101,466	–
Per capita income	$43,164±$1,266	$43,373	no clear change
People below the poverty line	7.6%±0.9 pts	10.6%	no clear change
Children under 18 below the poverty line	8.2%±1.9 pts	12.8%	no clear change
Households receiving SNAP	9.5%±1.5 pts	11.1%	–
Households with a broadband subscription	88.8%±1.3 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 Iowa County?

Owners occupy 77.4% of Iowa County's occupied homes and renters 22.6%. The median owner-occupied home is valued at $265,000 by its owner (±$10,500). The median renter pays $954 a month including utilities, and 25.8% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Iowa County	Wisconsin	Change since 2015-2019
Median home value (owner-occupied)	$265,000±$10,500	$266,500	+$39,537
Median gross rent	$954±$53	$1,087	no clear change
Renters paying 35% or more of income on rent	25.8%±6.2 pts	35.0%	no clear change
Median monthly owner costs, with a mortgage	$1,690±$61	$1,689	–
Owner-occupied homes	77.4%±2.0 pts	67.8%	+3.6 pts
Housing units	11,108±60	2,778,572	+223
Homeowner vacancy rate	2.0%±1.4 pts	0.5%	–
Rental vacancy rate	3.7%±3.1 pts	4.5%	–
Single-family detached homes	81.2%±1.8 pts	66.2%	–
Mobile homes	3.6%±0.6 pts	3.1%	–
Built 2020 or later	1.2%±0.6 pts	1.4%	–
Built 1939 or earlier	26.3%±1.8 pts	17.8%	–

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 Iowa County building?

Builders took permits for 69 new housing units across Iowa County in 2025 (63 single-family), 2.9 per 1,000 residents.

2019 61 units
2020 88 units
2021 138 units
2022 68 units
2023 69 units
2024 99 units
2025 69 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Iowa County get to work?

73.4% of Iowa County's workers drive alone and 13.8% work from home. The average trip to work takes 27.2 minutes. The unemployment rate in 2020-2024 averaged 3.1%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Iowa County	Wisconsin	Change since 2015-2019
In the labor force (age 16+)	67.9%±1.1 pts	65.3%	–
Unemployment rate	3.1%±1.2 pts	3.2%	no clear change
Drove alone to work	73.4%±2.3 pts	74.4%	–
Carpooled	7.2%±1.9 pts	7.3%	–
Public transportation	0.7%±0.7 pts	1.1%	–
Walked	3.3%±0.7 pts	2.6%	–
Worked from home	13.8%±1.6 pts	13.1%	+6.4 pts
Mean travel time to work	27.2 min±1.5	22.2 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 are Iowa County's census tracts?

Iowa County is divided into 6 census tracts. Among those with a reliable estimate, median household income runs from $67,976 (Tract 9502) to $101,360 (Tract 9505).

Census tracts of Iowa County, ACS 2020-2024 5-year estimates; sort by any column

Tract 950155049950100	Arena (12%)	3,858	3,951±220	$96,515	$315,100	$1,063	6.3%
Tract 950255049950200	Avoca (12%)	3,002	3,115±211	$67,976	$234,100	$763	13.1%
Tract 950355049950300	Rewey (7%)	3,062	2,916±203	$76,875	$205,000	$927	11.2%
Tract 950455049950400	Dodgeville (70%)	5,407	5,451±130	$73,046	$246,600	$997	6.1%
Tract 950555049950500	Barneveld (11%)	4,842	4,964±273	$101,360	$316,800	$908	7.3%
Tract 950655049950600	Mineral Point (54%)	3,538	3,470±168	$83,178	$244,400	$889	3.9%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Iowa County compare with Wisconsin's other counties?

Iowa County's rank among Wisconsin's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	48th of 72
Growth 2020-2025	40th of 72
Residents per square mile	51st of 72
Median household income	13th of 72
Median home value	17th of 72
Median gross rent	28th of 72
Poverty rate	64th of 72
Bachelor's degree or higher	23rd of 72
Median age	33rd of 72

Every county in Wisconsin

Source: PlainCities ranks 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 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 Iowa 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.