Dubuque County, Iowa Demographics 2026

Name: Dubuque County, Iowa Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Dubuque County, Iowa has a population of 99,030, the 9th most populous county in Iowa. The median household income is $77,630 and the median home value is $237,300. The poverty rate is 9.7%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Dubuque County Quick Facts

Population 99,030

Median Household Income $77,630

Median Home Value $237,300

Poverty Rate 9.7%

Unemployment Rate 3.7%

Median Age 39.1 years

Homeownership Rate 73.3%

Affordability Ratio 3.1x

Bachelor's Degree+ 33.4%

High School Graduation 93.9%

Cities/Places 21

Population 99,030 9th of 99

Median Income $77,630 3% higher than state

Poverty Rate 9.7%

Unemployment 3.7%

How Dubuque County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	98,948	99,030	+0.1%
Median household income	$75,919	$77,630	+2.3%
Median home value	$226,100	$237,300	+5.0%

Median Household Income

Dubuque

$77,630

$75,059

National

$80,734

Median Home Value

Dubuque

$237,300

$208,000

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 13.6%

$25K-$50K 18.1%

$50K-$100K 30.6%

$100K+ 37.7%

Detailed income brackets

Under $10K

4.4%

$10K-$15K

3.2%

$15K-$20K

2.7%

$20K-$25K

3.3%

$25K-$30K

2.9%

$30K-$35K

3.9%

$35K-$40K

3.3%

$40K-$45K

4.5%

$45K-$50K

3.5%

$50K-$60K

7.0%

$60K-$75K

9.4%

$75K-$100K

14.2%

$100K-$125K

11.4%

$125K-$150K

8.7%

$150K-$200K

9.1%

$200K+

8.4%

Employment

3.7% Unemployment Rate State: 3.6%|National: 5.2%

66.8% Labor Force Participation

Housing Overview

Owner 73.3%

Renter 26.7%

Affordability Index Affordable

3.1x home value to income ratio

Median gross rent $959/mo 14.8% of median household income annually

People & Demographics

Age Distribution

Under 18

22.5%

18-34

22.2%

35-54

22.8%

55-74

24.2%

75+

8.3%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 31 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Dubuque County

City	Population	Median Income	Poverty	Home Value
Dubuque	59,174	$65,845	12.7%	$204,800
Asbury	5,989	$124,957	3.2%	$339,000
Dyersville	4,423	$83,559	4.9%	$234,100
Cascade	2,375	$69,688	8.7%	$196,200
Peosta	2,040	$120,833	2.9%	$336,000
Epworth	1,894	$84,271	5.2%	$239,900
Farley	1,889	$97,143	3.5%	$266,000
Worthington	431	$97,500	2.8%	$166,800
New Vienna	372	$93,250	4.6%	$201,600
Holy Cross	280	$64,375	3.6%	$192,400
Rickardsville	234	$102,500	1.3%	$246,400
Luxemburg	229	$83,750	5.7%	$182,800
Sherrill	162	$84,167	3.1%	$211,800
Centralia	117	$77,500	0.0%	$223,100
Bernard	112	$71,250	4.5%	$169,200
Sageville	88	$60,625	28.4%	$233,900
Zwingle	76	$78,750	38.2%	$175,000
Balltown	72	$103,750	2.8%	$252,300
Graf	47	$78,750	8.5%	$187,500
Durango	18	N/A	0.0%	$275,000
Bankston	14	N/A	0.0%	N/A

Explore Iowa Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Dubuque County is located in Iowa with a total population of 99,030. It is the 9th most populous county out of 99 in Iowa. The county encompasses 21 Census-designated places.

Age Demographics

The median age in Dubuque County is 39.1 years. This is 1% higher than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Dubuque County is $77,630. This is 3% higher than the state median of $75,059. It is also 4% lower than the national median of $80,734. The poverty rate stands at 9.7%. This is 13% lower than the state poverty rate of 11.1%. The unemployment rate is 3.7%. This is 2% higher than the state rate of 3.6%. The median home value is $237,300. Housing costs are 14% higher than the state median of $208,000. The home-value-to-income ratio is 3.1x. 73.3% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 71.7%.

Race & Ethnicity

Dubuque County has a predominantly White (non-Hispanic) population, comprising 88.3% of all residents. Hispanic or Latino residents account for 3.3%. The Hispanic or Latino population (3.3%) is well below the state average of 7.3%.

Education

33.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Dubuque County in the top 10% of all counties in the state for educational attainment. This is 6% higher than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.9%.

Data Sources & Methodology

All figures for Dubuque County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Iowa and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Dubuque County, Iowa?

Dubuque County has a population of 99,030, making it the 9th most populous county in Iowa.

What is the median income in Dubuque County?

The median household income in Dubuque County is $77,630 with a poverty rate of 9.7%.

How many cities are in Dubuque County, Iowa?

Dubuque County contains 21 Census-designated places.