County

Delaware County, IA

10 ZIP codes  ·  10 cities  ·  Iowa

👥16,364Population
💰$76,422Median HH Income≈ Avg
🎂43.6Median Age
🏠$170,025Median Home Value▼ 39% below avg
🎓34.6%College Grads▼ 11% below avg
📊2.4%Unemployment▼ 51% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 50.7% Female 49.3% ♀

Race & Ethnicity

White: 94.9%Hispanic: 2.4%Black: 0.2%Asian: 0.2%Other: 2.9%Race
White94.9%
Hispanic2.4%
Black0.2%
Asian0.2%
Other2.9%

Age Breakdown

Under 5
6%
5–17
17%
18–24
8%
25–44
21%
45–64
28%
65+
9%

Key Indicators

Median Age43.6 yrs
Avg HH Size2.48
Below Poverty8.7% ▼ 13% below avg
College Grads34.6% ▼ 11% below avg
Unemployment2.4% ▼ 51% below avg
No HS Diploma92 (0.9%)
HS Graduate4,592 (43.6%)
Some College994 (9.4%)
Associates1,171 (11.1%)
Bachelors1,526 (14.5%)
Graduate Degree2,162 (20.5%)

Education

No HS: 0.9%HS Grad: 43.6%Some College: 9.4%Associates: 11.1%Bachelors: 14.5%Graduate: 20.5%Edu
No HS0.9%
HS Grad43.6%
Some College9.4%
Associates11.1%
Bachelors14.5%
Graduate20.5%
Housing & Income

Housing Tenure

Owner: 81.5%Renter: 18.5%Tenure
Owner81.5%
Renter18.5%

Home Value Distribution

Under $50k
8%
$50k–$100k
15%
$100k–$150k
21%
$150k–$200k
16%
$200k–$300k
18%
$300k–$500k
15%
Over $500k
7%

Financials

Median HH Income$76,422 ≈ Avg
Median Home Value$170,025 ▼ 39% below avg
Home/Income Ratio2.2x (nat avg ~3.5x)
Median Rent$746/mo
Total Housing Units7,619
Vacant Units944

Income Distribution

Under $25k
14%
$25k–$50k
16%
$50k–$75k
17%
$75k–$100k
18%
$100k–$150k
20%
$150k–$200k
8%
Over $200k
7%
Employment & Commute

How People Get to Work

Drove Alone
89%
Public Transit
1%
Walked
1%
Work From Home
9%

Commute Time

Under 15 min
48%
15–30 min
29%
30–45 min
10%
Over 45 min
13%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
11%
1960s–1970s
11%
1980s–1990s
11%
2000+
65%
About Delaware County, IA

Delaware County is located in Iowa and encompasses 10 ZIP codes spanning 10 cities and communities. The county has an estimated population of 16,364 residents. With a median age of 43.58, it is a middle-aged county.

Delaware County has a middle-income economic profile. The median household income of $76,422 is near the national average. Unemployment stands at 2.4%, well below the national average. The poverty rate of 8.7% is near the national average.

Housing in Delaware County is an affordable housing market, with a median home value of $170,025 — below the national average. Monthly median rent is approximately $746. Homeownership rates are high at 81.5%, reflecting a largely residential, stable population.

The residents of Delaware County are primarily White (94.86%). Educational attainment is moderately educated — 34.6% of adults hold a bachelor's degree or higher, near the national average.

Delaware County, IA is a middle-income area in Iowa. The 10 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.

ZIP Codes in Delaware County
ZIPCityPopulationMedian IncomeMedian HomeMedian RentUnemp.College
52035 Colesburg 1,345 $59,702 $131,900 $721 4.7% 29.2%
52036 Delaware 124 $72,750 $139,500 $613 7.1% 34.0%
52223 Delhi 1,170 $83,026 $195,200 $892 0.0% 38.7%
52038 Dundee 522 $73,750 $168,800 $750 5.9% 40.0%
52041 Earlville 1,796 $87,316 $211,500 $750 0.7% 30.9%
52050 Greeley 477 $69,375 $211,100 $795 2.1% 32.3%
52237 Hopkinton 1,526 $83,633 $135,200 $381 1.9% 23.3%
52057 Manchester 7,883 $71,467 $168,800 $737 3.0% 38.2%
50654 Masonville 335 $51,620 $176,700 $1,594 1.0% 29.2%
52330 Ryan 1,186 $107,431 $163,900 $907 0.0% 33.2%