51528 ZIP Code — Dow City, IA

Crawford County, Iowa

ZIP code 51528 is located in Dow City, Iowa, within Crawford County. It covers approximately 71.13 square miles and serves a population of 642 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51528

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $95,000. Owner-occupancy sits near the national average at 69%.

Median household income is $70,625. 39% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.

Overall, ZIP code 51528 reflects a community defined by a trades-oriented workforce, a strong veteran community, and a significant Social Security-dependent population.

642
population
71.13
sq mi land
Standard
ZIP type
Central (CT)
timezone
51528 ZIP code map
Cities in ZIP code 51528

Below are the cities the US Postal Service accepts for ZIP code 51528. Using any city not on this list may result in mail delivery delays.

City Status
Dow City Acceptable
Dow City Preferred
Nearby ZIP codes
51442 Denison (9 mi) 51529 Dunlap (9.8 mi) 51439 Charter Oak (10.2 mi) 51530 Earling (11.7 mi) 51060 Ute (11.9 mi) 51527 Defiance (12.3 mi) 51572 Soldier (14.1 mi) 51562 Panama (15.1 mi) 51461 Schleswig (15.1 mi) 51579 Woodbine (16.1 mi) 51454 Manilla (16.4 mi) 51441 Deloit (16.4 mi)
Demographics updated 05/2026
Population
Total population 642
Population density 9 / sq mi
State FIPS 19
County FIPS 047
Geography
Land area 71.13 sq mi
Water area 0.20 sq mi
Latitude 41.9503
Longitude -95.5177
Timezone Central (CT)
Area code 712
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 51.5% 44.4% 40.1%
$50k – $100k 22.8% 33.2% 33.4%
$100k – $200k 22.5% 18.6% 21.5%
Over $200k 3.2% 3.7% 5.0%

Demographics & statistics

642
Population
9
People per sq mi
47.5
Median age
$70,625
Median household income
$41,075
Per capita income
$95,000
Median home value
$683
Median monthly rent
69.0%
Home ownership
10.8%
Poverty rate
1.3%
Unemployment
210
Housing units
12.9%
Bachelor's or higher

Age distribution

Male Female
6
Under 5
7
23
5–9
24
12
10–14
13
18
15–19
19
38
20–24
39
28
25–34
29
22
35–44
22
57
45–54
57
15
55–59
16
16
60–64
17
48
65–74
48
26
75–84
27
7
85+
8
← Male
Female →

Age summary

GroupCount%
Under 1811017.1%
18 and over53282.9%
65 and over16425.5%
Median age47.5 years

Race & ethnicity

White 91.7%
Two or more races 5.1%
Hispanic or Latino 1.1%
American Indian / Alaska Native 1.1%
Other race 1.1%
GroupCount%
White59591.7%
Two or more races335.1%
Hispanic or Latino71.1%
American Indian / Alaska Native71.1%
Other race71.1%

Household income

Income range This ZIP County avg State avg
Under $50k 51.5% 44.4% 40.1%
$50k – $100k 22.8% 33.2% 33.4%
$100k – $200k 22.5% 18.6% 21.5%
Over $200k 3.2% 3.7% 5.0%
Under $10k 3.5%
$10k–$15k 3.9%
$15k–$25k 4.9%
$25k–$35k 15.8%
$35k–$50k 9.5%
$50k–$75k 14.1%
$75k–$100k 15.8%
$100k–$150k 19.7%
$150k–$200k 4.9%
$200k+ 7.7%
Range% of households
Under $10k3.5%
$10k–$15k3.9%
$15k–$25k4.9%
$25k–$35k15.8%
$35k–$50k9.5%
$50k–$75k14.1%
$75k–$100k15.8%
$100k–$150k19.7%
$150k–$200k4.9%
$200k+7.7%
Median income$70,625

Housing

Home values

Under $50k 24.5%
$50k–$100k 27.0%
$100k–$150k 15.3%
$150k–$200k 15.8%
$200k–$300k 6.6%
$300k–$500k 4.6%
$500k–$1M 3.6%
$1M+ 2.6%

Housing overview

MetricValue
Median home value$95,000
Median rent / month$683
Owner occupied69.0%
Renter occupied31.0%
Vacant4.7%
Single-family detached82.2%
Large apartment buildings0.0%
Mobile homes5.0%
Median rooms6.1
Avg household size (owned)2.45

Year built

Era%
2020 or later0.0%
2010–20190.0%
2000–20092.7%
1990–19994.4%
1980–19897.0%
1970–197918.8%
1960–196919.1%
1950–19593.4%
1940–194910.1%
1939 or earlier34.6%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom12.8%
2 bedrooms20.1%
3 bedrooms44.0%
4 bedrooms15.1%
5+ bedrooms8.1%

Vehicles per household

Vehicles% of households
No vehicle1.1%
1 vehicle23.9%
2 vehicles40.8%
3 or more34.2%

Heating fuel

Fuel type%
Utility gas36.3%
Electricity45.1%
Propane / LP gas17.3%
Wood1.4%

Households & families

Household typeCount%
Married-couple family14450.7%
Cohabiting couple3612.7%
Male householder, no spouse5519.4%
Female householder, no spouse4917.3%
Households with children under 186021.1%
Households with seniors (65+)10235.9%
Average household size2.26

Marital status

StatusMaleFemale
Never married38.5%25.8%
Married54.2%53.9%
Separated0.0%0.7%
Widowed2.8%4.4%
Divorced4.5%15.1%

Education

Less than 9th grade 5.0%
Some HS, no diploma 3.8%
HS graduate 44.5%
Some college, no degree 28.0%
Associate's degree 5.9%
Bachelor's degree 11.1%
Graduate / professional 1.8%
Metric%
HS diploma or higher91.2%
Bachelor's or higher12.9%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool118.1%
Kindergarten75.2%
Elementary school4533.3%
High school4130.4%
College / grad school3123.0%

Employment

Industry of employment

Education & healthcare 29.2%
Manufacturing 22.5%
Arts, food & hospitality 8.8%
Retail trade 8.2%
Construction 5.8%
Transportation & utilities 5.0%
Public administration 4.5%
Other services 4.2%
Finance & real estate 3.4%
Professional & management 3.4%
Information 2.7%
Agriculture & mining 1.3%
Wholesale trade 0.8%

Occupation

Category%
Management, business & arts24.9%
Service29.4%
Sales & office8.8%
Natural resources & construction11.9%
Production & transportation24.9%

Employment type

Type%
Private sector68.4%
Government18.8%
Self-employed12.7%
Unpaid family workers0.0%

Commute

Method%
Drive alone89.3%
Carpool4.0%
Public transit0.0%
Walk4.5%
Work from home0.0%
Other means2.3%
Avg commute (minutes)21.2

Poverty

All people 10.8%
Under 18 years 17.8%
18 and over 9.4%
Married-couple families 0.0%
Female-led households 32.1%

Income support

Source% of households
Social Security38.7%
Retirement income22.9%
Supplemental Security3.5%
Cash public assistance1.4%
Food stamps / SNAP7.4%

Health indicators

Condition%
Obesity43.3%
High blood pressure37.8%
High cholesterol37.3%
Diabetes12.8%
Heart disease8.7%
Stroke4.0%
Asthma9.8%
Arthritis28.7%
Kidney disease3.6%
Pulmonary disease9.5%
Cancer7.7%
Behavior / access%
Smoking20.8%
Binge drinking19.8%
No physical activity30.8%
Less than 7 hrs sleep32.4%
Depression18.0%
Fair or poor health17.1%
Poor mental health14.1%
Poor physical health12.3%
No health insurance11.1%
Visited doctor (checkup)74.9%
Visited dentist61.3%
Cholesterol screening88.1%
Teeth loss17.2%

Veterans & disability

VeteransCount%
Civilian veterans7514.1%
Disability%
Any disability13.9%
Under 186.4%
18–64 years11.7%
65 and over23.8%

Health insurance coverage

Type%
Private insurance71.0%
Public insurance41.0%
No insurance8.7%
Uninsured under 191.8%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only62998.0%
Spanish50.8%
Other Indo-European20.3%
Asian & Pacific Islander30.5%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)62397.0%
Born in same state62397.0%
Born in different state47273.5%
Foreign born00.0%
Naturalized citizen193.0%
Not a US citizen1263.2%

Ancestry

AncestryCount%
Italian8312.9%
Polish548.4%
French304.7%
AncestryCount%
Arab284.4%
Dutch81.2%
English10.2%

Technology access

Metric% of households
Computer access44.2%
Internet access88.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 51528

What city is ZIP code 51528 in?

ZIP code 51528 is primarily assigned to Dow City, Iowa.

What county is ZIP code 51528 in?

ZIP code 51528 falls within Crawford County, Iowa.

Does ZIP code 51528 have an older population?

26% of residents in ZIP code 51528 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 51528?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 51528 have a large veteran population?

14% of civilians in ZIP code 51528 are veterans, above the national average of ~7%.

Does ZIP code 51528 have a large retiree population?

39% of households in ZIP code 51528 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 51528 in?

ZIP code 51528 observes the CST timezone.

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