Dallas County, Iowa Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 7th-largest in Iowa

The population of Dallas County, Iowa is 104,136 as of the 2023 American Community Survey, making it the 7th-largest county in Iowa. The median household income is $102,349, the median home value is $333,400, and the median age is 35.8.

The population of Dallas County has grown 72.8% since 2010 (66,751 → 115,343), a +3.98% annualized rate.

Dallas County within Iowa · Source: US Census TIGER/Line via us-atlas

104,136

Population

+3.98%

Annual growth

177

People / sq mi

$102,349

Median Income

$333,400

Median Home Value

Dallas County covers 588 sq mi of land at 177.0 people per square mile.

About Dallas County, IA

Dallas County is a county in Iowa with a population of 104,136. It ranks #7 among counties in Iowa by population. The median age is 35.8, younger than the national median. The population is 49.7% male and 50.3% female.

The median household income in Dallas County is $102,349, above the US median of $74,580. 4.4% of residents live below the federal poverty level. Home values sit at a median of $333,400, with monthly rent averaging $1,239. The homeownership rate of 69.5% is higher than the national rate of 64.8%.

Educational attainment in Dallas County reflects 51.6% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 18.6% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 20.8 minutes each way.

Dallas County Population History (2010-2024)

The county of Dallas County had a population of 66,751 in 2010 and 115,343 in 2024, a 72.8% growth over 14 years. The peak was 115,343 in 2024. Average annual growth rate: 3.99%.

115,343

Population (2024)

66,751

Population (2010)

115,343

Peak (2024)

3.99%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	66,751	-	-	estimate
2011	69,699	+2,948	+4.42%	estimate
2012	72,248	+2,549	+3.66%	estimate
2013	74,968	+2,720	+3.76%	estimate
2014	77,758	+2,790	+3.72%	estimate
2015	80,658	+2,900	+3.73%	estimate
2016	84,278	+3,620	+4.49%	estimate
2017	87,219	+2,941	+3.49%	estimate
2018	89,999	+2,780	+3.19%	estimate
2019	93,631	+3,632	+4.04%	estimate
2020	100,544	+6,913	+7.38%	estimate
2021	104,194	+3,650	+3.63%	estimate
2022	108,164	+3,970	+3.81%	estimate
2023	111,593	+3,429	+3.17%	estimate
2024	115,343	+3,750	+3.36%	estimate

Race & Ethnicity

White	84.9%
Black or African American	2.5%
Asian	0.0%
Hispanic or Latino (any race)	0.8%
Two or More Races	0.0%

Age & Sex

35.8

Median Age

50.3%

Female

49.7%

Male

12.5%

Age 65+

Age Distribution

Under 5

6.9%

5–9

8.0%

10–14

7.6%

15–19

6.2%

20–24

5.5%

25–34

14.2%

35–44

16.6%

45–54

12.3%

55–59

5.2%

60–64

5.0%

65–74

7.3%

75–84

3.4%

85+

1.8%

Children (under 15): 22.5% · Seniors (65+): 12.5%

Income & Poverty

Median household income	$102,349+$29,202 vs state
Mean household income	$134,691
Per-capita income	$52,722
Poverty rate	4.4%-2.5% vs state
Unemployment rate	2.2%
Employment-to-population	72.9%

Top Industries by Employment

Professional & business services

22.7%

Information

20.4%

Finance & real estate

12.5%

Manufacturing

8.1%

Construction

4.9%

Education & health care

4.8%

Retail trade

4.2%

Arts, entertainment & food

4.1%

The largest employment sector in Dallas County is professional & business services, accounting for 22.7% of workers.

How residents commute

0.1%

Drive alone

1.2%

Carpool

71.9%

Public transit

18.6%

Work from home

20.8 min

Avg commute

Housing

$333,400+$137,500 vs state

Median home value

$1,239

Median rent

69.5%

Homeownership rate

43,195

Total housing units

94.6%

Occupied

5.4%

Vacant

30.5%

Renter-occupied

Social & access

95.9%

With health insurance

96.8%

With broadband internet

21.5%

Foreign-born

5.8%

Veterans (18+)

7.7%

With a disability

87.4%

Speak language other than English at home

Education

96.1%

High School+

51.6%

Bachelor's+

Largest cities in Iowa

Des Moines (212,464)Cedar Rapids (136,859)Davenport (101,083)Sioux City (85,651)Iowa City (75,264)Ankeny (70,542)West Des Moines (69,893)Waterloo (66,947)Ames (66,112)Council Bluffs (62,564)All Iowa cities →

Other counties in Iowa

Polk County (497,441)Linn County (229,463)Scott County (174,302)Johnson County (154,881)Black Hawk County (130,693)Woodbury County (105,760)Dubuque County (98,948)Story County (98,592)Pottawattamie County (93,407)Warren County (53,484)All Iowa counties →

Part of Iowa

Iowa demographic profile All Iowa data →

Metro areas in Iowa

Omaha (972,840)Des Moines (720,331)Davenport (381,864)Cedar Rapids (275,960)Iowa City (177,420)Waterloo (168,163)Sioux City (144,007)Ames (125,261)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Dallas County, Iowa has a population of 104,136 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 7th-largest county in Iowa. Population density is 177 people per square mile.

The population of Dallas County has grown 72.8% since 2010 (66,751 → 115,343), a +3.98% annualized rate.

The median household income in Dallas County, Iowa is $102,349, with mean (average) household income of $134,691 and per-capita income of $52,722. 4.4% of residents live below the federal poverty level.

In Dallas County, the largest racial and ethnic groups are White (84.9%), Black or African American (2.5%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Dallas County, Iowa is 35.8 years. Residents are 50.3% female and 49.7% male.

The median home value in Dallas County is $333,400 and median monthly rent is $1,239. 69.5% of occupied housing units are owner-occupied. The county has 43,195 total housing units, 5.4% of which are vacant.

The largest employment sector in Dallas County, Iowa is professional, scientific, and management services, employing 22.7% of workers. The unemployment rate is 2.2%.

Des Moines is among the largest cities associated with Dallas County, Iowa, with a population of 212,464.