County · Iowa

Warren County, Iowa

Warren County, Iowa. Warren County had 57,331 residents in 2025 by the Census Bureau's estimate, up 9.4% since 2020, faster than Iowa (+1.5%). It holds 16 places (16 cities, villages and boroughs) and 14 census tracts. GEOID 19181.

Warren County is one of the 6 counties of the Des Moines-West Des Moines, IA metropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

57,331

Census Bureau estimate (no margin published)
2020 Census count: 52,403 · ACS 2020-2024: 54,409

Median household income

$94,588

±$3,834 (90% margin)
Iowa: $75,059

Median home value

$269,600

±$11,116 (90% margin)
Iowa: $208,000

Median gross rent

$973

±$57 (90% margin)
Iowa: $972

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

The 2020 Census counted 52,403 residents in Warren County. The Census Bureau estimates 57,331 for July 1, 2025, up 9.4% since 2020, faster than Iowa (+1.5%). The 2020-2024 American Community Survey puts the population at 54,409 over 570 square miles of land.

July 2020→2021 +918 (53,515)
2021→2022 +842 (54,357)
2022→2023 +998 (55,355)
2023→2024 +1,141 (56,496)
2024→2025 +835 (57,331)

Warren County in Iowa. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Warren County	Iowa	Change since 2015-2019
Total population	54,409	3,210,507	+4,333
Households	20,679±291	1,315,707	+1,421
Average household size	2.55±0.04	2.36	no clear change
Housing units	21,921±49	1,437,699	+1,917

Warren County's population since 2000

From 40,671 in 2000 to 57,331 in 2025: up 41.0%. 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 40,671
2005 (estimate) 43,339
2010 Census 46,225
2015 (estimate) 48,486
2020 Census 52,403
2025 (estimate) 57,331

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 Warren County?

Warren County holds 16 places: 16 cities, villages and boroughs (incorporated places). The largest is Indianola with 16,829 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 Warren County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Indianola	city	15,833	16,044±39	$75,453	$237,500	6.4%	100%
Norwalk	city	12,799	14,183±22	$102,722	$303,100	4.2%	100%
Carlisle	city	4,160	4,255±46	$109,191	$234,300	3.1%	98%
Milo	city	778	731±176	$79,904	$153,100	1.6%	100%
Hartford	city	733	760±165	$70,000	$176,700	7.1%	100%
New Virginia	city	498	587±143	$77,188	$180,600	1.4%	100%
Cumming	city	436	545±152	$162,875	$508,000	4.4%	100%
Martensdale	city	421	569±135	$57,500	$181,400	10.2%	100%
Lacona	city	345	354±112	$70,100	$97,500	10.7%	100%
West Des Moines	city	68,723	71,083±123	$86,594	$309,000	8.4%	0%
Des Moines	city	214,133	212,421±197	$65,932	$194,700	15.0%	0%
AckworthGEOID 1900235	city	115	75±44	$111,094	$237,500	28.0%	100%
St. MarysGEOID 1970095	city	108	96±37	$77,500	$195,000	8.3%	100%
Spring HillGEOID 1974685	city	68	39±23	$86,250	not published	7.7%	100%
SandyvilleGEOID 1970590	city	58	44±29	not published	$187,500	2.3%	100%
BevingtonGEOID 1906490	city	57	15±11	not published	not published	46.7%	5%

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 Warren County?

The median resident of Warren County is 38.8 years old; 24.4% are under 18 and 16.7% are 65 or older. The largest group is non-Hispanic white residents at 91.9%, then Hispanic or Latino residents (of any race) at 3.7%. 1.5% 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	Warren County	Iowa	Change since 2015-2019
Median age	38.8±0.4	38.6	no clear change
Under 18 years	24.4%±0.1 pts	22.9%	–
65 years and over	16.7%±0.1 pts	18.1%	–
Hispanic or Latino (any race)	3.7%	7.3%	+0.9 pts
White alone, not Hispanic	91.9%±0.4 pts	82.3%	−2.3 pts
Black or African American alone, not Hispanic	0.7%±0.2 pts	3.8%	no clear change
Asian alone, not Hispanic	0.7%±0.2 pts	2.5%	no clear change
American Indian and Alaska Native alone, not Hispanic	0.1%±0.1 pts	0.2%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.2%	–
Two or more races, not Hispanic	2.8%±0.4 pts	3.5%	–
Some other race alone, not Hispanic	0.1%±0.1 pts	0.3%	–
Born outside the United States	1.5%±0.4 pts	5.9%	no clear change
Speak a language other than English at home (age 5+)	2.9%±0.6 pts	9.1%	–
Civilian veterans (age 18+)	6.7%±0.7 pts	6.5%	–
With a disability	11.6%±0.9 pts	12.6%	–
No health insurance coverage	2.0%±0.5 pts	5.0%	no clear change
High school graduate or higher (age 25+)	96.7%±0.6 pts	93.3%	–
Bachelor's degree or higher (age 25+)	33.3%±1.9 pts	31.4%	no clear change
Graduate or professional degree (age 25+)	9.7%±1.0 pts	10.5%	–
Moved from another state in the past year	1.0%±0.3 pts	2.2%	–

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 Warren County earn?

Half of Warren County's 20,679 households earn less than $94,588 a year (±$3,834), against $75,059 in Iowa. In 2015-2019 it was $94,823 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Warren County	Iowa	Change since 2015-2019
Median household income	$94,588±$3,834	$75,059	no clear change
Mean household income	$111,331±$3,966	$98,187	–
Per capita income	$43,596±$1,561	$40,877	no clear change
People below the poverty line	5.1%±0.9 pts	11.1%	−3.1 pts
Children under 18 below the poverty line	3.1%±1.4 pts	12.9%	−7.0 pts
Households receiving SNAP	6.1%±1.2 pts	8.8%	–
Households with a broadband subscription	91.8%±1.0 pts	88.9%	–

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 Warren County?

Owners occupy 82.3% of Warren County's occupied homes and renters 17.7%. The median owner-occupied home is valued at $269,600 by its owner (±$11,116). The median renter pays $973 a month including utilities, and 31.1% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Warren County	Iowa	Change since 2015-2019
Median home value (owner-occupied)	$269,600±$11,116	$208,000	+$39,214
Median gross rent	$973±$57	$972	no clear change
Renters paying 35% or more of income on rent	31.1%±6.4 pts	35.2%	no clear change
Median monthly owner costs, with a mortgage	$1,816±$52	$1,533	–
Owner-occupied homes	82.3%±1.8 pts	71.7%	+3.3 pts
Housing units	21,921±49	1,437,699	+1,917
Homeowner vacancy rate	0.7%±0.6 pts	0.8%	–
Rental vacancy rate	9.7%±4.5 pts	5.7%	–
Single-family detached homes	76.7%±1.9 pts	72.2%	–
Mobile homes	3.3%±0.8 pts	3.2%	–
Built 2020 or later	3.2%±0.8 pts	1.7%	–
Built 1939 or earlier	10.9%±1.1 pts	23.5%	–

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 Warren County building?

Builders took permits for 465 new housing units across Warren County in 2025 (355 single-family), 8.1 per 1,000 residents.

2019 351 units
2020 530 units
2021 544 units
2022 512 units
2023 363 units
2024 438 units
2025 465 units

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

How do people in Warren County get to work?

76.0% of Warren County's workers drive alone and 15.3% work from home. The average trip to work takes 24.1 minutes. The unemployment rate in 2020-2024 averaged 3.4%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Warren County	Iowa	Change since 2015-2019
In the labor force (age 16+)	68.7%±1.2 pts	66.4%	–
Unemployment rate	3.4%±0.8 pts	3.6%	no clear change
Drove alone to work	76.0%±1.9 pts	76.0%	–
Carpooled	5.2%±0.9 pts	7.8%	–
Public transportation	0.0%±0.1 pts	0.7%	–
Walked	2.5%±0.7 pts	2.9%	–
Worked from home	15.3%±1.6 pts	11.3%	+10.3 pts
Mean travel time to work	24.1 min±0.9	19.8 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 are Warren County's census tracts?

Warren County is divided into 14 census tracts. Among those with a reliable estimate, median household income runs from $52,969 (Tract 207.01) to $116,010 (Tract 203).

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

Tract 201.0119181020101	Des Moines (56%)	1,854	1,864±233	$63,770	$175,400	$1,625	8.5%
Tract 202.0119181020201	Norwalk (85%)	4,557	5,582±581	$106,570	$260,700	not published	4.0%
Tract 202.0219181020202	Norwalk (91%)	8,296	8,788±590	$94,839	$331,700	$856	4.3%
Tract 20319181020300	Cumming (10%)	3,612	3,687±300	$116,010	$399,400	$1,322	8.4%
Tract 20419181020400	Carlisle (62%)	4,646	4,829±206	$104,201	$241,300	$1,041	3.7%
Tract 20519181020500	Hartford (11%)	2,341	2,500±300	$101,146	$250,900	$1,515	3.5%
Tract 20619181020600	Indianola (18%)	3,736	3,518±445	$96,740	$332,100	$1,641	5.3%
Tract 207.0119181020701	Indianola	1,035	932±172	$52,969	$167,500	$653	5.1%
Tract 207.0219181020702	Indianola	3,698	3,518±350	$92,212	$259,600	$1,273	2.9%
Tract 20819181020800	Indianola (95%)	3,496	3,571±317	$100,000	$240,300	$1,237	1.9%
Tract 20919181020900	Indianola (94%)	3,538	3,559±322	$54,142	$224,800	$861	10.3%
Tract 21019181021000	Indianola (99%)	2,785	2,745±320	$66,000	$215,100	$1,073	11.8%
Tract 21119181021100	Milo (9%)	4,988	5,121±340	$101,341	$274,000	$944	3.3%
Tract 21219181021200	New Virginia (9%)	3,821	4,195±404	$101,016	$317,400	$1,068	4.3%

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

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

Warren County's rank among Iowa's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	11th of 99
Growth 2020-2025	2nd of 99
Residents per square mile	13th of 99
Median household income	2nd of 99
Median home value	4th of 99
Median gross rent	10th of 99
Poverty rate	99th of 99
Bachelor's degree or higher	10th of 99
Median age	85th of 99

Every county in Iowa

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 Warren 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.