Delaware County, IA ZIP Codes
Iowa (IA) · 10 ZIP codes · 10 cities
10
ZIP codes
17,510
population (2021)
-1.4%
pop change since 2010
19055
FIPS code
Delaware County ZIP code map
About Delaware County
Delaware County is located in Iowa and contains 10 ZIP codes across 10 cities and communities.
The county's population was 17,510 as of 2021,
a decrease of
1.4% from 17,764 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Delaware County is 19055.
| Population | |
|---|---|
| 2021 population | 17,510 |
| 2010 population | 17,764 |
| Change | -1.4% |
| County details | |
|---|---|
| State | Iowa |
| FIPS code | 19055 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Delaware County
ZIP codes for Delaware County, IA (10)
| ZIP code | City | County | Map |
|---|---|---|---|
| 50654 | Masonville | Delaware | View map |
| 52035 | Colesburg | Delaware | View map |
| 52036 | Delaware | Delaware | View map |
| 52038 | Dundee | Delaware | View map |
| 52041 | Earlville | Delaware | View map |
| 52050 | Greeley | Delaware | View map |
| 52057 | Manchester | Delaware | View map |
| 52223 | Delhi | Delaware | View map |
| 52237 | Hopkinton | Delaware | View map |
| 52330 | Ryan | Delaware | View map |
Demographics & statistics
15,140
Population
42.3
Median age
$77,611
Median household income
$41,861
Per capita income
$162,822
Median home value
$587
Median monthly rent
79.0%
Home ownership
8.5%
Poverty rate
2.1%
Unemployment
5,880
Housing units
17.9%
Bachelor's or higher
Age distribution
Male
Female
488
Under 5
506
465
5–9
482
563
10–14
582
480
15–19
497
395
20–24
409
699
25–34
724
854
35–44
885
800
45–54
829
673
55–59
697
617
60–64
639
796
65–74
824
405
75–84
419
202
85+
210
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 3,714 | 23.8% |
| 18 and over | 11,426 | 76.2% |
| 65 and over | 2,856 | 18.5% |
| Median age | 42.3 years | |
Race & ethnicity
White
94.1%
Two or more races
2.9%
Hispanic or Latino
1.7%
Other race
0.9%
Asian
0.2%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 14,498 | 94.1% |
| Two or more races | 448 | 2.9% |
| Hispanic or Latino | 262 | 1.7% |
| Other race | 142 | 0.9% |
| Asian | 36 | 0.2% |
| American Indian / Alaska Native | 15 | 0.1% |
Household income
Under $10k
1.7%
$10k–$15k
3.5%
$15k–$25k
7.6%
$25k–$35k
5.6%
$35k–$50k
13.5%
$50k–$75k
16.3%
$75k–$100k
17.1%
$100k–$150k
20.6%
$150k–$200k
7.6%
$200k+
6.5%
| Range | % of households |
|---|---|
| Under $10k | 1.7% |
| $10k–$15k | 3.5% |
| $15k–$25k | 7.6% |
| $25k–$35k | 5.6% |
| $35k–$50k | 13.5% |
| $50k–$75k | 16.3% |
| $75k–$100k | 17.1% |
| $100k–$150k | 20.6% |
| $150k–$200k | 7.6% |
| $200k+ | 6.5% |
| Median income | $77,611 |
Housing
Home values
Under $50k
8.5%
$50k–$100k
16.0%
$100k–$150k
23.8%
$150k–$200k
18.6%
$200k–$300k
18.5%
$300k–$500k
8.7%
$500k–$1M
5.4%
$1M+
0.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $162,822 |
| Median rent / month | $587 |
| Owner occupied | 79.0% |
| Renter occupied | 21.0% |
| Vacant | 12.2% |
| Single-family detached | 87.3% |
| Large apartment buildings | 0.6% |
| Mobile homes | 6.4% |
| Median rooms | 6.5 |
| Avg household size (owned) | 2.56 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.3% |
| 2010–2019 | 3.1% |
| 2000–2009 | 9.8% |
| 1990–1999 | 10.9% |
| 1980–1989 | 11.1% |
| 1970–1979 | 12.2% |
| 1960–1969 | 6.9% |
| 1950–1959 | 9.3% |
| 1940–1949 | 4.5% |
| 1939 or earlier | 31.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.2% |
| 1 bedroom | 5.7% |
| 2 bedrooms | 19.2% |
| 3 bedrooms | 48.6% |
| 4 bedrooms | 21.1% |
| 5+ bedrooms | 5.2% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.5% |
| 1 vehicle | 22.5% |
| 2 vehicles | 31.6% |
| 3 or more | 40.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 27.7% |
| Electricity | 9.4% |
| Propane / LP gas | 53.2% |
| Fuel oil | 1.9% |
| Wood | 6.6% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,583 | 58.6% |
| Cohabiting couple | 343 | 5.5% |
| Male householder, no spouse | 987 | 16.9% |
| Female householder, no spouse | 1,170 | 19.0% |
| Households with children under 18 | 1,769 | 28.3% |
| Households with seniors (65+) | 1,914 | 31.0% |
| Average household size | 2.48 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 25.9% | 19.2% |
| Married | 62.9% | 57.9% |
| Separated | 0.1% | 1.4% |
| Widowed | 1.9% | 13.4% |
| Divorced | 9.1% | 8.1% |
Education
Less than 9th grade
3.0%
Some HS, no diploma
3.1%
HS graduate
45.3%
Some college, no degree
16.1%
Associate's degree
14.5%
Bachelor's degree
12.8%
Graduate / professional
5.1%
| Metric | % |
|---|---|
| HS diploma or higher | 93.9% |
| Bachelor's or higher | 17.9% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 195 | 10.1% |
| Kindergarten | 166 | 4.2% |
| Elementary school | 1,734 | 51.9% |
| High school | 885 | 22.4% |
| College / grad school | 361 | 11.4% |
Employment
Industry of employment
Education & healthcare
19.7%
Manufacturing
18.9%
Agriculture & mining
12.3%
Construction
9.8%
Retail trade
8.0%
Other services
6.5%
Finance & real estate
6.3%
Transportation & utilities
5.1%
Wholesale trade
4.4%
Professional & management
4.4%
Arts, food & hospitality
2.7%
Public administration
1.4%
Information
0.5%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 34.0% |
| Service | 10.9% |
| Sales & office | 20.4% |
| Natural resources & construction | 14.2% |
| Production & transportation | 20.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.5% |
| Government | 8.8% |
| Self-employed | 15.1% |
| Unpaid family workers | 0.7% |
Commute
| Method | % |
|---|---|
| Drive alone | 75.5% |
| Carpool | 7.6% |
| Public transit | 0.5% |
| Walk | 2.2% |
| Other means | 1.8% |
| Avg commute (minutes) | 24.9 |
Poverty
All people
8.5%
Under 18 years
16.5%
18 and over
7.1%
Married-couple families
2.7%
Female-led households
29.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 33.4% |
| Retirement income | 23.9% |
| Supplemental Security | 4.6% |
| Cash public assistance | 2.4% |
| Food stamps / SNAP | 6.6% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 29.2% |
| High cholesterol | 29.8% |
| Heart disease | 5.9% |
| Stroke | 2.7% |
| Asthma | 8.1% |
| Arthritis | 21.6% |
| Kidney disease | 2.5% |
| Pulmonary disease | 6.1% |
| Cancer | 6.2% |
| Behavior / access | % |
|---|---|
| Binge drinking | 19.9% |
| No physical activity | 20.8% |
| Less than 7 hrs sleep | 26.8% |
| Fair or poor health | 11.1% |
| Poor mental health | 11.7% |
| Poor physical health | 8.5% |
| No health insurance | 8.3% |
| Visited doctor (checkup) | 65.5% |
| Visited dentist | 59.7% |
| Cholesterol screening | 78.8% |
| Teeth loss | 11.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 738 | 5.7% |
| Disability | % |
|---|---|
| Any disability | 11.1% |
| Under 18 | 3.3% |
| 18–64 years | 8.3% |
| 65 and over | 30.5% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 77.8% |
| Public insurance | 32.1% |
| Uninsured under 19 | 3.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 14,146 | 92.7% |
| Spanish | 57 | 0.7% |
| Other Indo-European | 51 | 0.6% |
| Asian & Pacific Islander | 6 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 15,086 | 99.6% |
| Born in same state | 15,063 | 99.5% |
| Born in different state | 13,716 | 91.3% |
| Foreign born | 23 | 0.0% |
| Naturalized citizen | 54 | 0.4% |
| Not a US citizen | 36 | 22.2% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,380 | 15.7% |
| French | 1,516 | 10% |
| Arab | 824 | 5.4% |
| English | 220 | 1.5% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 175 | 1.2% |
| Dutch | 37 | 0.2% |
| German | 5 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.7% |
| Internet access | 91.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Explore more Iowa ZIP codes