51442 ZIP Code — Denison, IA

Crawford County, Iowa

ZIP code 51442 is located in Denison, Iowa, within Crawford County. It covers approximately 159.59 square miles and serves a population of 9,648 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51442

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $123,600. Owner-occupancy sits near the national average at 70%.

Median household income is $59,325. Poverty affects 21% of residents, above the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 14 minutes is near the national average.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 51442 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and a significant Social Security-dependent population.

9,648

population

159.59

sq mi land

Standard

ZIP type

Central (CT)

timezone

51442 ZIP code map

Cities in ZIP code 51442

Below are the cities the US Postal Service accepts for ZIP code 51442. Using any city not on this list may result in mail delivery delays.

City	Status
Denison	Preferred

Nearby ZIP codes

51441 Deloit (7.9 mi) 51528 Dow City (9 mi) 51465 Vail (9.9 mi) 51461 Schleswig (11.3 mi) 51439 Charter Oak (11.8 mi) 51454 Manilla (12.3 mi) 51448 Kiron (12.4 mi) 51467 Westside (13.1 mi) 51527 Defiance (13.6 mi) 51530 Earling (16.4 mi) 51060 Ute (17.4 mi) 51430 Arcadia (17.5 mi)

Demographics updated 05/2026

Population
Total population	9,648
Population density	60 / sq mi
State FIPS	19
County FIPS	047

Geography
Land area	159.59 sq mi
Water area	0.13 sq mi
Latitude	42.0231
Longitude	-95.3729
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	44.6%	44.4%	40.1%
$50k – $100k	30.9%	33.2%	33.4%
$100k – $200k	20.9%	18.6%	21.5%
Over $200k	3.5%	3.7%	5.0%

Demographics & statistics

9,648

Population

People per sq mi

34.7

Median age

$59,325

Median household income

$27,054

Per capita income

$123,600

Median home value

$775

Median monthly rent

69.5%

Home ownership

21.1%

Poverty rate

5.4%

Unemployment

2,658

Housing units

15.0%

Bachelor's or higher

Age distribution

Male Female

246

Under 5

271

350

5–9

385

350

10–14

385

397

15–19

436

375

20–24

412

612

25–34

673

622

35–44

683

431

45–54

474

318

55–59

349

218

60–64

239

368

65–74

405

253

75–84

277

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,550	26.4%
18 and over	7,098	73.6%
65 and over	1,422	14.7%
Median age	34.7 years

Race & ethnicity

White 54%

Hispanic or Latino 19%

Two or more races 12.2%

Other race 9.1%

Black or African American 2.9%

Asian 2.7%

American Indian / Alaska Native 0.1%

Group	Count	%
White	6,432	54%
Hispanic or Latino	2,262	19%
Two or more races	1,450	12.2%
Other race	1,084	9.1%
Black or African American	344	2.9%
Asian	327	2.7%
American Indian / Alaska Native	11	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.6%	44.4%	40.1%
$50k – $100k	30.9%	33.2%	33.4%
$100k – $200k	20.9%	18.6%	21.5%
Over $200k	3.5%	3.7%	5.0%

Under $10k 9.1%

$10k–$15k 1.4%

$15k–$25k 12.8%

$25k–$35k 9.7%

$35k–$50k 10.7%

$50k–$75k 19.5%

$75k–$100k 10.3%

$100k–$150k 17.7%

$150k–$200k 3.7%

$200k+ 5.1%

Range	% of households
Under $10k	9.1%
$10k–$15k	1.4%
$15k–$25k	12.8%
$25k–$35k	9.7%
$35k–$50k	10.7%
$50k–$75k	19.5%
$75k–$100k	10.3%
$100k–$150k	17.7%
$150k–$200k	3.7%
$200k+	5.1%
Median income	$59,325

Housing

Home values

Under $50k 22.8%

$50k–$100k 19.0%

$100k–$150k 19.9%

$150k–$200k 17.8%

$200k–$300k 12.8%

$300k–$500k 5.2%

$500k–$1M 2.4%

Housing overview

Metric	Value
Median home value	$123,600
Median rent / month	$775
Owner occupied	69.5%
Renter occupied	30.5%
Vacant	6.8%
Single-family detached	66.7%
Large apartment buildings	4.0%
Mobile homes	11.9%
Median rooms	5.8
Avg household size (owned)	2.73

Year built

Era	%
2020 or later	0.0%
2010–2019	2.3%
2000–2009	3.7%
1990–1999	6.3%
1980–1989	14.1%
1970–1979	25.9%
1960–1969	8.5%
1950–1959	5.3%
1940–1949	6.4%
1939 or earlier	27.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	3.1%
2 bedrooms	21.7%
3 bedrooms	47.7%
4 bedrooms	22.3%
5+ bedrooms	3.7%

Vehicles per household

Vehicles	% of households
No vehicle	6.5%
1 vehicle	23.6%
2 vehicles	43.9%
3 or more	26.0%

Heating fuel

Fuel type	%
Utility gas	51.0%
Electricity	40.4%
Propane / LP gas	6.7%
Fuel oil	0.8%
Wood	0.4%

Households & families

Household type	Count	%
Married-couple family	1,642	47.5%
Cohabiting couple	370	10.7%
Male householder, no spouse	524	15.1%
Female householder, no spouse	923	26.7%
Households with children under 18	1,487	43.0%
Households with seniors (65+)	1,093	31.6%
Average household size	2.64

Marital status

Status	Male	Female
Never married	31.6%	32.0%
Married	48.0%	45.7%
Separated	1.8%	1.9%
Widowed	4.6%	8.7%
Divorced	13.8%	11.8%

Education

Less than 9th grade 13.5%

Some HS, no diploma 10.9%

HS graduate 29.6%

Some college, no degree 21.0%

Associate's degree 10.0%

Bachelor's degree 11.9%

Graduate / professional 3.1%

Metric	%
HS diploma or higher	75.6%
Bachelor's or higher	15.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	146	5.2%
Kindergarten	132	4.7%
Elementary school	1,088	38.7%
High school	783	27.8%
College / grad school	665	23.6%

Employment

Industry of employment

Manufacturing 25.4%

Education & healthcare 21.2%

Retail trade 10.6%

Professional & management 7.4%

Construction 6.8%

Arts, food & hospitality 6.5%

Other services 5.8%

Finance & real estate 4.3%

Agriculture & mining 4.1%

Wholesale trade 3.2%

Transportation & utilities 2.9%

Public administration 1.2%

Information 0.5%

Occupation

Category	%
Management, business & arts	15.2%
Service	20.3%
Sales & office	21.0%
Natural resources & construction	9.8%
Production & transportation	33.7%

Employment type

Type	%
Private sector	75.3%
Government	9.8%
Self-employed	14.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	72.9%
Carpool	14.7%
Public transit	4.8%
Walk	2.3%
Work from home	4.8%
Other means	0.5%
Avg commute (minutes)	13.6

Poverty

All people 21.1%

Under 18 years 29.6%

18 and over 18.0%

Married-couple families 3.3%

Female-led households 56.7%

Income support

Source	% of households
Social Security	32.0%
Retirement income	19.7%
Supplemental Security	3.1%
Cash public assistance	0.4%
Food stamps / SNAP	9.3%

Health indicators

Condition	%
Obesity	42.2%
High blood pressure	32.4%
High cholesterol	35.1%
Diabetes	11.4%
Heart disease	7.3%
Stroke	3.5%
Asthma	9.5%
Arthritis	23.6%
Kidney disease	3.2%
Pulmonary disease	7.8%
Cancer	6.4%

Behavior / access	%
Smoking	18.8%
Binge drinking	20.4%
No physical activity	32.7%
Less than 7 hrs sleep	32.3%
Depression	16.9%
Fair or poor health	17.7%
Poor mental health	14.3%
Poor physical health	11.4%
No health insurance	19.1%
Visited doctor (checkup)	72.1%
Visited dentist	58.3%
Cholesterol screening	84.8%
Teeth loss	19.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	269	3.8%

Disability	%
Any disability	15.6%
Under 18	11.5%
18–64 years	12.2%
65 and over	38.6%

Health insurance coverage

Type	%
Private insurance	59.9%
Public insurance	38.7%
No insurance	11.4%
Uninsured under 19	3.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,131	94.6%
Spanish	1,773	19.4%
Other Indo-European	1,615	17.7%
Asian & Pacific Islander	0	0.0%
Other languages	79	0.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,376	76.5%
Born in same state	7,222	74.9%
Born in different state	4,420	45.8%
Foreign born	154	1.6%
Naturalized citizen	2,272	23.5%
Not a US citizen	1,053	46.3%

Ancestry

Ancestry	Count	%
French	524	5.4%
Italian	325	3.4%
Dutch	223	2.3%
Arab	215	2.2%
English	70	0.7%

Ancestry	Count	%
Polish	39	0.4%
Norwegian	20	0.2%
German	17	0.2%
Irish	3	0%

Technology access

Metric	% of households
Computer access	35.9%
Internet access	92.3%

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

Frequently asked questions about ZIP code 51442

What city is ZIP code 51442 in?

ZIP code 51442 is primarily assigned to Denison, Iowa.

What county is ZIP code 51442 in?

ZIP code 51442 falls within Crawford County, Iowa.

What is the poverty rate in ZIP code 51442?

21% of residents in ZIP code 51442 live below the poverty line, above the national average.

What is the typical home value in ZIP code 51442?

The median home value in ZIP code 51442 is $123,600.

What is the population of ZIP code 51442?

ZIP code 51442 has an estimated population of 9,648 residents, with a density of 60 people per square mile.

What is the median household income in ZIP code 51442?

The median household income in ZIP code 51442 is $59,325, below the national median of ~$75,000.

What timezone is ZIP code 51442 in?

ZIP code 51442 observes the CST timezone.