52037 ZIP Code — Delmar, IA

Clinton County, Iowa

ZIP code 52037 is located in Delmar, Iowa, within Clinton County. It covers approximately 68.26 square miles and serves a population of 943 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 563.

About ZIP code 52037

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 $169,600. Owner-occupancy is high at 91%, well above the national average.

Median household income is $73,333. The poverty rate of 5% is below the national average. 41% 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 25 minutes is near the national average.

Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.

Overall, ZIP code 52037 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.

943

population

68.26

sq mi land

Standard

ZIP type

Central (CT)

timezone

52037 ZIP code map

Cities in ZIP code 52037

Below are the cities the US Postal Service accepts for ZIP code 52037. Using any city not on this list may result in mail delivery delays.

City	Status
Delmar	Acceptable
Delmar	Preferred

Nearby ZIP codes

52731 Charlotte (8.4 mi) 52751 Grand Mound (8.6 mi) 52254 Lost Nation (9.6 mi) 52060 Maquoketa (10.1 mi) 52742 De Witt (10.7 mi) 52729 Calamus (12.2 mi) 52750 Goose Lake (12.2 mi) 52069 Preston (12.8 mi) 52777 Wheatland (13.9 mi) 52207 Baldwin (14.4 mi) 52746 Donahue (16.4 mi) 52756 Long Grove (16.6 mi)

Demographics updated 05/2026

Population
Total population	943
Population density	14 / sq mi
State FIPS	19
County FIPS	045

Geography
Land area	68.26 sq mi
Water area	0.02 sq mi
Latitude	41.9563
Longitude	-90.6298
Timezone	Central (CT)
Area code	563

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.4%	47.2%	40.1%
$50k – $100k	35.7%	33.0%	33.4%
$100k – $200k	20.2%	17.5%	21.5%
Over $200k	6.7%	2.2%	5.0%

Demographics & statistics

943

Population

People per sq mi

42.7

Median age

$73,333

Median household income

$36,702

Per capita income

$169,600

Median home value

$621

Median monthly rent

91.1%

Home ownership

4.8%

Poverty rate

2.3%

Unemployment

386

Housing units

25.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	212	22.5%
18 and over	731	77.5%
65 and over	242	25.7%
Median age	42.7 years

Race & ethnicity

White 91.5%

Two or more races 4%

Hispanic or Latino 2.6%

Black or African American 1.3%

Other race 0.5%

Group	Count	%
White	886	91.5%
Two or more races	39	4%
Hispanic or Latino	25	2.6%
Black or African American	13	1.3%
Other race	5	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.4%	47.2%	40.1%
$50k – $100k	35.7%	33.0%	33.4%
$100k – $200k	20.2%	17.5%	21.5%
Over $200k	6.7%	2.2%	5.0%

Under $10k 1.6%

$10k–$15k 3.2%

$15k–$25k 9.1%

$25k–$35k 9.7%

$35k–$50k 15.9%

$50k–$75k 14.8%

$75k–$100k 14.0%

$100k–$150k 19.4%

$150k–$200k 5.4%

$200k+ 7.0%

Range	% of households
Under $10k	1.6%
$10k–$15k	3.2%
$15k–$25k	9.1%
$25k–$35k	9.7%
$35k–$50k	15.9%
$50k–$75k	14.8%
$75k–$100k	14.0%
$100k–$150k	19.4%
$150k–$200k	5.4%
$200k+	7.0%
Median income	$73,333

Housing

Home values

Under $50k 1.5%

$50k–$100k 27.7%

$100k–$150k 15.9%

$150k–$200k 18.0%

$200k–$300k 9.4%

$300k–$500k 19.5%

$500k–$1M 5.0%

$1M+ 2.9%

Housing overview

Metric	Value
Median home value	$169,600
Median rent / month	$621
Owner occupied	91.1%
Renter occupied	8.9%
Vacant	11.2%
Single-family detached	93.8%
Large apartment buildings	0.5%
Mobile homes	2.6%
Median rooms	6.9
Avg household size (owned)	2.46

Year built

Era	%
2020 or later	0.0%
2010–2019	3.8%
2000–2009	4.8%
1990–1999	8.8%
1980–1989	3.1%
1970–1979	14.8%
1960–1969	5.0%
1950–1959	2.9%
1940–1949	8.4%
1939 or earlier	48.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.4%
2 bedrooms	19.3%
3 bedrooms	44.2%
4 bedrooms	21.2%
5+ bedrooms	6.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.5%
1 vehicle	17.7%
2 vehicles	38.7%
3 or more	43.0%

Heating fuel

Fuel type	%
Utility gas	43.8%
Electricity	18.8%
Propane / LP gas	29.6%
Fuel oil	3.2%
Wood	2.7%
Solar	1.1%

Households & families

Household type	Count	%
Married-couple family	226	60.8%
Cohabiting couple	18	4.8%
Male householder, no spouse	49	13.2%
Female householder, no spouse	79	21.2%
Households with children under 18	83	22.3%
Households with seniors (65+)	160	43.0%
Average household size	2.53

Marital status

Status	Male	Female
Never married	27.0%	24.0%
Married	63.2%	58.4%
Separated	0.3%	0.0%
Widowed	3.8%	10.6%
Divorced	5.7%	6.9%

Education

Less than 9th grade 1.0%

Some HS, no diploma 2.8%

HS graduate 44.4%

Some college, no degree 17.2%

Associate's degree 9.3%

Bachelor's degree 16.6%

Graduate / professional 8.7%

Metric	%
HS diploma or higher	96.2%
Bachelor's or higher	25.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	7.7%
Kindergarten	9	4.9%
Elementary school	87	47.8%
High school	53	29.1%
College / grad school	19	10.4%

Employment

Industry of employment

Education & healthcare 32.0%

Manufacturing 14.5%

Agriculture & mining 12.4%

Construction 10.7%

Retail trade 7.7%

Finance & real estate 4.9%

Other services 4.1%

Arts, food & hospitality 3.6%

Transportation & utilities 2.8%

Wholesale trade 2.3%

Professional & management 2.3%

Public administration 2.3%

Information 0.4%

Occupation

Category	%
Management, business & arts	43.5%
Service	15.6%
Sales & office	15.4%
Natural resources & construction	8.5%
Production & transportation	17.1%

Employment type

Type	%
Private sector	78.3%
Government	11.7%
Self-employed	10.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	79.9%
Carpool	4.5%
Public transit	0.0%
Walk	1.9%
Work from home	13.3%
Other means	0.4%
Avg commute (minutes)	25.3

Poverty

All people 4.8%

Under 18 years 5.6%

18 and over 4.7%

Married-couple families 0.9%

Female-led households 11.5%

Income support

Source	% of households
Social Security	41.4%
Retirement income	21.8%
Supplemental Security	4.3%
Cash public assistance	0.5%
Food stamps / SNAP	5.6%

Health indicators

Condition	%
Obesity	39.9%
High blood pressure	33.8%
High cholesterol	34.6%
Diabetes	10.0%
Heart disease	6.9%
Stroke	3.0%
Asthma	9.5%
Arthritis	24.9%
Kidney disease	2.9%
Pulmonary disease	7.0%
Cancer	7.4%

Behavior / access	%
Smoking	17.8%
Binge drinking	21.5%
No physical activity	23.9%
Less than 7 hrs sleep	31.2%
Depression	16.9%
Fair or poor health	12.6%
Poor mental health	13.1%
Poor physical health	9.6%
No health insurance	9.3%
Visited doctor (checkup)	76.3%
Visited dentist	66.2%
Cholesterol screening	89.3%
Teeth loss	12.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	84	11.5%

Disability	%
Any disability	15.6%
Under 18	7.5%
18–64 years	8.4%
65 and over	37.2%

Health insurance coverage

Type	%
Private insurance	72.2%
Public insurance	40.7%
No insurance	5.2%
Uninsured under 19	4.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	878	93.1%
Spanish	3	0.3%
Other Indo-European	0	0.0%
Asian & Pacific Islander	3	0.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	940	99.7%
Born in same state	938	99.5%
Born in different state	812	86.1%
Foreign born	2	0.2%
Naturalized citizen	3	0.3%
Not a US citizen	3	100.0%

Ancestry

Ancestry	Count	%
Italian	200	21.2%
French	67	7.1%
Arab	32	3.4%

Ancestry	Count	%
Polish	17	1.8%
Dutch	16	1.7%
English	7	0.7%

Technology access

Metric	% of households
Computer access	39.4%
Internet access	86.3%

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

Frequently asked questions about ZIP code 52037

What city is ZIP code 52037 in?

ZIP code 52037 is primarily assigned to Delmar, Iowa.

What county is ZIP code 52037 in?

ZIP code 52037 falls within Clinton County, Iowa.

Is ZIP code 52037 mostly owner-occupied?

91% of occupied units in ZIP code 52037 are owner-occupied, well above the national average.

Does ZIP code 52037 have an older population?

26% of residents in ZIP code 52037 are 65 or older, above the national average of ~17%.

Does ZIP code 52037 have a large retiree population?

41% of households in ZIP code 52037 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 52037 have a large veteran population?

12% of civilians in ZIP code 52037 are veterans, above the national average of ~7%.

What timezone is ZIP code 52037 in?

ZIP code 52037 observes the CST timezone.