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Iowa ZIP Codes
Dubuque County
Dubuque, IA
52003
52003 ZIP Code — Dubuque, IA
Dubuque County, Iowa
ZIP code 52003 is located in
Dubuque ,
Iowa ,
within Dubuque County .
It covers approximately 56.37 square miles and serves a population of
13,820 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 563 .
About ZIP code 52003
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $255,000. Owner-occupancy is high at 86%, well above the national average.
The gap between median ($91,703) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 15 minutes is near the national average.
Educational attainment is near the national average, with 43% of residents holding a bachelor's degree or higher.
Overall, ZIP code 52003 reflects a community defined by high homeownership and a significant Social Security-dependent population.
52003 ZIP code map
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Cities in ZIP code 52003
Below are the cities the US Postal Service accepts for ZIP code 52003. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
13,820
Population density
245 / sq mi
State FIPS
19
County FIPS
061
Geography
Land area
56.37 sq mi
Water area
2.27 sq mi
Latitude
42.4388
Longitude
-90.6408
Timezone
Central (CT)
Area code
563
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.3%
38.6%
40.1%
$50k – $100k
31.7%
34.4%
33.4%
$100k – $200k
30.6%
21.9%
21.5%
Over $200k
9.4%
5.2%
5.0%
Demographics & statistics
$91,703
Median household income
$255,000
Median home value
43.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 3,268 23.6%
18 and over 10,552 76.4%
65 and over 2,801 20.3%
Median age 42.0 years
Race & ethnicity
Black or African American
0.2%
Group Count %
White 13,297 95%
Two or more races 392 2.8%
Hispanic or Latino 174 1.2%
Other race 63 0.5%
Asian 39 0.3%
Black or African American 27 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.3%
38.6%
40.1%
$50k – $100k
31.7%
34.4%
33.4%
$100k – $200k
30.6%
21.9%
21.5%
Over $200k
9.4%
5.2%
5.0%
Range % of households
Under $10k 2.7%
$10k–$15k 2.8%
$15k–$25k 7.1%
$25k–$35k 5.5%
$35k–$50k 6.6%
$50k–$75k 16.9%
$75k–$100k 13.1%
$100k–$150k 21.8%
$150k–$200k 10.8%
$200k+ 12.8%
Median income $91,703
Housing
Housing overview
Metric Value
Median home value $255,000
Median rent / month $936
Owner occupied 86.3%
Renter occupied 13.7%
Vacant 6.2%
Single-family detached 75.0%
Large apartment buildings 4.0%
Mobile homes 11.2%
Median rooms 6.7
Avg household size (owned) 2.54
Year built
Era %
2020 or later 0.7%
2010–2019 8.0%
2000–2009 14.6%
1990–1999 12.1%
1980–1989 5.8%
1970–1979 20.2%
1960–1969 12.7%
1950–1959 11.1%
1940–1949 4.5%
1939 or earlier 10.3%
Bedrooms
Size % of units
No bedroom (studio) 2.3%
1 bedroom 3.3%
2 bedrooms 17.9%
3 bedrooms 41.6%
4 bedrooms 27.3%
5+ bedrooms 7.7%
Vehicles per household
Vehicles % of households
No vehicle 5.8%
1 vehicle 27.5%
2 vehicles 39.5%
3 or more 27.2%
Heating fuel
Fuel type %
Utility gas 75.3%
Electricity 11.0%
Propane / LP gas 8.6%
Fuel oil 1.4%
Wood 2.4%
Solar 0.3%
No fuel used 0.2%
Households & families
Household type Count %
Married-couple family 3,189 57.7%
Cohabiting couple 403 7.3%
Male householder, no spouse 859 15.6%
Female householder, no spouse 1,072 19.4%
Households with children under 18 1,581 28.6%
Households with seniors (65+) 1,858 33.6%
Average household size 2.46
Marital status
Status Male Female
Never married 27.2% 22.4%
Married 61.3% 58.9%
Separated 1.0% 1.0%
Widowed 2.3% 8.2%
Divorced 8.1% 9.6%
Education
Some college, no degree
19.8%
Graduate / professional
17.9%
Metric %
HS diploma or higher 96.7%
Bachelor's or higher 43.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 359 10.5%
Kindergarten 211 6.2%
Elementary school 1,453 42.5%
High school 715 20.9%
College / grad school 683 20.0%
Employment
Industry of employment
Education & healthcare
27.8%
Arts, food & hospitality
8.4%
Professional & management
7.0%
Finance & real estate
6.4%
Transportation & utilities
5.9%
Public administration
3.3%
Agriculture & mining
0.9%
Occupation
Category %
Management, business & arts 47.2%
Service 14.5%
Sales & office 16.3%
Natural resources & construction 8.5%
Production & transportation 13.5%
Employment type
Type %
Private sector 83.8%
Government 11.8%
Self-employed 4.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 85.6%
Carpool 3.3%
Public transit 0.2%
Walk 0.9%
Work from home 9.5%
Other means 0.6%
Avg commute (minutes) 15.4
Poverty
Married-couple families
0.8%
Female-led households
12.5%
Income support
Source % of households
Social Security 34.5%
Retirement income 29.2%
Supplemental Security 3.1%
Cash public assistance 0.9%
Food stamps / SNAP 4.3%
Health indicators
Condition %
Obesity 35.5%
High blood pressure 30.4%
High cholesterol 32.9%
Diabetes 9.4%
Heart disease 6.5%
Stroke 2.9%
Asthma 8.9%
Arthritis 24.7%
Kidney disease 2.8%
Pulmonary disease 6.2%
Cancer 7.7%
Behavior / access %
Smoking 13.9%
Binge drinking 23.5%
No physical activity 19.9%
Less than 7 hrs sleep 29.2%
Depression 16.2%
Fair or poor health 11.2%
Poor mental health 12.1%
Poor physical health 8.8%
No health insurance 7.7%
Visited doctor (checkup) 77.1%
Visited dentist 74.4%
Cholesterol screening 90.5%
Teeth loss 10.4%
Veterans & disability
Veterans Count %
Civilian veterans 596 5.6%
Disability %
Any disability 11.6%
Under 18 3.3%
18–64 years 8.0%
65 and over 31.1%
Health insurance coverage
Type %
Private insurance 82.0%
Public insurance 30.8%
No insurance 2.0%
Uninsured under 19 0.1%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 12,984 94.0%
Spanish 136 1.0%
Other Indo-European 131 1.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 13,586 98.3%
Born in same state 13,552 98.1%
Born in different state 10,288 74.4%
Foreign born 34 0.2%
Naturalized citizen 234 1.7%
Not a US citizen 69 29.5%
Ancestry
Ancestry Count %
Italian 3,250 23.5%
French 1,074 7.8%
Arab 994 7.2%
Polish 486 3.5%
Ancestry Count %
Dutch 175 1.3%
English 162 1.2%
German 43 0.3%
Irish 17 0.1%
Technology access
Metric % of households
Computer access 40.0%
Internet access 92.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52003
What city is ZIP code 52003 in?
ZIP code 52003 is primarily assigned to Dubuque, Iowa.
What county is ZIP code 52003 in?
ZIP code 52003 falls within Dubuque County, Iowa.
Is ZIP code 52003 mostly owner-occupied?
86% of occupied units in ZIP code 52003 are owner-occupied, well above the national average.
What is the population of ZIP code 52003?
ZIP code 52003 has an estimated population of 13,820 residents, with a density of 245 people per square mile.
What is the median household income in ZIP code 52003?
The median household income in ZIP code 52003 is $91,703, above the national median of ~$75,000.
What is the typical home value in ZIP code 52003?
The median home value in ZIP code 52003 is $255,000.
What timezone is ZIP code 52003 in?
ZIP code 52003 observes the CST timezone.
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