County · Iowa
Dubuque County, Iowa
Dubuque County, Iowa. Dubuque County had 99,381 residents in 2025 by the Census Bureau's estimate, up 0.1% since 2020, slower than Iowa (+1.5%). It holds 21 places (21 cities, villages and boroughs) and 27 census tracts. GEOID 19061.
Dubuque County is the county of the Dubuque, IA metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
99,381
Census Bureau estimate (no margin published)
2020 Census count: 99,266 · ACS 2020-2024: 99,030
Median household income
$77,630
±$2,303 (90% margin)
Iowa: $75,059
Median home value
$237,300
±$4,972 (90% margin)
Iowa: $208,000
Median gross rent
$959
±$26 (90% margin)
Iowa: $972
How many people live in Dubuque County, and is it growing?
The 2020 Census counted 99,266 residents in Dubuque County. The Census Bureau estimates 99,381 for July 1, 2025, up 0.1% since 2020, slower than Iowa (+1.5%). The 2020-2024 American Community Survey puts the population at 99,030 over 608 square miles of land.
| Measure | Dubuque County | Iowa | Change since 2015-2019 |
|---|---|---|---|
| Total population | 99,030 | 3,210,507 | +2,048 |
| Households | 40,989±363 | 1,315,707 | +2,779 |
| Average household size | 2.31±0.02 | 2.36 | −0.12 |
| Housing units | 43,288±88 | 1,437,699 | +1,989 |
Dubuque County's population since 2000
From 89,143 in 2000 to 99,381 in 2025: up 11.5%. 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.
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 Dubuque County?
Dubuque County holds 21 places: 21 cities, villages and boroughs (incorporated places). The largest is Dubuque with 59,148 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Dubuque | 59,667 | $65,845 |
|---|---|---|
| Asbury | 5,943 | $124,957 |
| Dyersville | 4,477 | $83,559 |
| Epworth | 2,023 | $84,271 |
| Cascade | 2,386 | $69,688 |
| Peosta | 1,908 | $120,833 |
| Farley | 1,766 | $97,143 |
| Worthington | 382 | $97,500 |
| New Vienna | 382 | $93,250 |
| Holy Cross | 356 | $64,375 |
| Luxemburg | 245 | $83,750 |
| RickardsvilleGEOID 1966810 | 202 | $102,500 |
| SherrillGEOID 1972660 | 189 | $84,167 |
| CentraliaGEOID 1912630 | 116 | $77,500 |
| BernardGEOID 1906085 | 114 | $71,250 |
| SagevilleGEOID 1969690 | 95 | $60,625 |
| BalltownGEOID 1904375 | 79 | $103,750 |
| GrafGEOID 1931845 | 76 | $78,750 |
| ZwingleGEOID 1987690 | 84 | $78,750 |
| BankstonGEOID 1904510 | 23 | not published |
| DurangoGEOID 1922935 | 20 | not published |
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 Dubuque County?
The median resident of Dubuque County is 39.1 years old; 22.5% are under 18 and 19.3% are 65 or older. The largest group is non-Hispanic white residents at 88.3%, then Hispanic or Latino residents (of any race) at 3.3%. 3.3% of residents were born outside the United States.
| Measure | Dubuque County | Iowa | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.1±0.4 | 38.6 | no clear change |
| Under 18 years | 22.5% | 22.9% | – |
| 65 years and over | 19.3%±0.1 pts | 18.1% | – |
| Hispanic or Latino (any race) | 3.3% | 7.3% | +0.8 pts |
| White alone, not Hispanic | 88.3%±0.3 pts | 82.3% | −2.4 pts |
| Black or African American alone, not Hispanic | 2.9%±0.3 pts | 3.8% | −0.6 pts |
| Asian alone, not Hispanic | 1.3%±0.1 pts | 2.5% | +0.2 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.8%±0.1 pts | 0.2% | – |
| Two or more races, not Hispanic | 3.3%±0.5 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.1%±0.1 pts | 0.3% | – |
| Born outside the United States | 3.3%±0.4 pts | 5.9% | no clear change |
| Speak a language other than English at home (age 5+) | 4.8%±0.5 pts | 9.1% | – |
| Civilian veterans (age 18+) | 5.9%±0.5 pts | 6.5% | – |
| With a disability | 11.0%±0.8 pts | 12.6% | – |
| No health insurance coverage | 3.5%±0.5 pts | 5.0% | no clear change |
| High school graduate or higher (age 25+) | 93.9%±0.6 pts | 93.3% | – |
| Bachelor's degree or higher (age 25+) | 33.4%±1.3 pts | 31.4% | +2.6 pts |
| Graduate or professional degree (age 25+) | 11.6%±0.8 pts | 10.5% | – |
| Moved from another state in the past year | 2.7%±0.5 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 Dubuque County earn?
Half of Dubuque County's 40,989 households earn less than $77,630 a year (±$2,303), against $75,059 in Iowa. In 2015-2019 it was $77,572 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.7% of residents live below the poverty line.
| Measure | Dubuque County | Iowa | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $77,630±$2,303 | $75,059 | no clear change |
| Mean household income | $100,177±$3,244 | $98,187 | – |
| Per capita income | $41,404±$1,101 | $40,877 | no clear change |
| People below the poverty line | 9.7%±1.0 pts | 11.1% | −1.7 pts |
| Children under 18 below the poverty line | 10.6%±2.5 pts | 12.9% | no clear change |
| Households receiving SNAP | 8.0%±0.9 pts | 8.8% | – |
| Households with a broadband subscription | 90.0%±1.2 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 Dubuque County?
Owners occupy 73.3% of Dubuque County's occupied homes and renters 26.7%. The median owner-occupied home is valued at $237,300 by its owner (±$4,972). The median renter pays $959 a month including utilities, and 40.6% of renters pay 35% or more of their income on rent.
| Measure | Dubuque County | Iowa | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $237,300±$4,972 | $208,000 | +$32,020 |
| Median gross rent | $959±$26 | $972 | no clear change |
| Renters paying 35% or more of income on rent | 40.6%±4.1 pts | 35.2% | no clear change |
| Median monthly owner costs, with a mortgage | $1,562±$36 | $1,533 | – |
| Owner-occupied homes | 73.3%±1.2 pts | 71.7% | no clear change |
| Housing units | 43,288±88 | 1,437,699 | +1,989 |
| Homeowner vacancy rate | 0.7%±0.5 pts | 0.8% | – |
| Rental vacancy rate | 2.1%±1.0 pts | 5.7% | – |
| Single-family detached homes | 71.0%±1.0 pts | 72.2% | – |
| Mobile homes | 3.2%±0.5 pts | 3.2% | – |
| Built 2020 or later | 1.3%±0.3 pts | 1.7% | – |
| Built 1939 or earlier | 23.8%±1.2 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 Dubuque County building?
Builders took permits for 334 new housing units across Dubuque County in 2025 (159 single-family), 3.4 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Dubuque County get to work?
78.7% of Dubuque County's workers drive alone and 12.0% work from home. The average trip to work takes 16.7 minutes. The unemployment rate in 2020-2024 averaged 3.7%.
| Measure | Dubuque County | Iowa | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.8%±1.0 pts | 66.4% | – |
| Unemployment rate | 3.7%±0.6 pts | 3.6% | no clear change |
| Drove alone to work | 78.7%±1.3 pts | 76.0% | – |
| Carpooled | 5.2%±0.7 pts | 7.8% | – |
| Public transportation | 0.8%±0.3 pts | 0.7% | – |
| Walked | 2.3%±0.5 pts | 2.9% | – |
| Worked from home | 12.0%±1.1 pts | 11.3% | +8.0 pts |
| Mean travel time to work | 16.7 min±0.7 | 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 Dubuque County's census tracts?
Dubuque County is divided into 27 census tracts. Among those with a reliable estimate, median household income runs from $38,864 (Tract 5) to $143,453 (Tract 101.04).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Dubuque County compare with Iowa's other counties?
| Measure | Rank |
|---|---|
| Population | 9th of 99 |
| Growth 2020-2025 | 33rd of 99 |
| Residents per square mile | 8th of 99 |
| Median household income | 21st of 99 |
| Median home value | 11th of 99 |
| Median gross rent | 12th of 99 |
| Poverty rate | 56th of 99 |
| Bachelor's degree or higher | 9th of 99 |
| Median age | 81st of 99 |
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 Dubuque 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.