51637 ZIP Code — College Springs, IA

Page County, Iowa

ZIP code 51637 is located in College Springs, Iowa, within Page County. It covers approximately 1.25 square miles and serves a population of 215 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51637

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 $71,900. Owner-occupancy is high at 95%, well above the national average.

Median household income is $67,734.

The dominant occupation class is natural resources, construction, and trades, with agriculture and mining as the leading industry. The average commute of 27 minutes is near the national average.

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

26% of residents lack health insurance, above the national average.

215

population

1.25

sq mi land

Standard

ZIP type

Central (CT)

timezone

51637 ZIP code map

Cities in ZIP code 51637

Below are the cities the US Postal Service accepts for ZIP code 51637. Using any city not on this list may result in mail delivery delays.

City	Status
College Springs	Acceptable

Demographics updated 05/2026

Population
Total population	215
Population density	172 / sq mi
State FIPS	19
County FIPS	145

Geography
Land area	1.25 sq mi
Water area	0.00 sq mi
Latitude	40.6083
Longitude	-95.1179
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	56.1%	49.0%	40.1%
$50k – $100k	36.8%	34.1%	33.4%
$100k – $200k	7.0%	15.2%	21.5%
Over $200k	0.0%	1.7%	5.0%

Demographics & statistics

215

Population

172

People per sq mi

47.2

Median age

$67,734

Median household income

$26,385

Per capita income

$71,900

Median home value

$742

Median monthly rent

95.1%

Home ownership

13.5%

Poverty rate

1.7%

Unemployment

101

Housing units

24.8%

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	52	24.2%
18 and over	163	75.8%
65 and over	38	17.7%
Median age	47.2 years

Race & ethnicity

White 99.1%

Two or more races 0.9%

Group	Count	%
White	213	99.1%
Two or more races	2	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	56.1%	49.0%	40.1%
$50k – $100k	36.8%	34.1%	33.4%
$100k – $200k	7.0%	15.2%	21.5%
Over $200k	0.0%	1.7%	5.0%

Under $10k 5.9%

$10k–$15k 1.0%

$15k–$25k 9.8%

$25k–$35k 10.8%

$35k–$50k 17.6%

$50k–$75k 35.3%

$75k–$100k 13.7%

$100k–$150k 3.9%

$200k+ 2.0%

Range	% of households
Under $10k	5.9%
$10k–$15k	1.0%
$15k–$25k	9.8%
$25k–$35k	10.8%
$35k–$50k	17.6%
$50k–$75k	35.3%
$75k–$100k	13.7%
$100k–$150k	3.9%
$200k+	2.0%
Median income	$67,734

Housing

Home values

Under $50k 21.6%

$50k–$100k 66.0%

$100k–$150k 11.3%

$200k–$300k 1.0%

Housing overview

Metric	Value
Median home value	$71,900
Median rent / month	$742
Owner occupied	95.1%
Renter occupied	4.9%
Vacant	3.8%
Single-family detached	96.2%
Large apartment buildings	0.0%
Mobile homes	0.9%
Median rooms	6.9
Avg household size (owned)	2.10

Year built

Era	%
2020 or later	0.0%
2010–2019	2.8%
2000–2009	3.8%
1990–1999	0.9%
1980–1989	3.8%
1970–1979	0.0%
1960–1969	1.9%
1950–1959	2.8%
1940–1949	1.9%
1939 or earlier	82.1%

Bedrooms

Size	% of units
No bedroom (studio)	1.9%
1 bedroom	1.9%
2 bedrooms	15.1%
3 bedrooms	32.1%
4 bedrooms	46.2%
5+ bedrooms	2.8%

Vehicles per household

Vehicles	% of households
No vehicle	2.9%
1 vehicle	17.6%
2 vehicles	30.4%
3 or more	49.0%

Heating fuel

Fuel type	%
Utility gas	2.0%
Electricity	10.8%
Propane / LP gas	52.9%
Wood	34.3%

Households & families

Household type	Count	%
Married-couple family	34	33.3%
Cohabiting couple	33	32.4%
Male householder, no spouse	19	18.6%
Female householder, no spouse	16	15.7%
Households with children under 18	20	19.6%
Households with seniors (65+)	28	27.5%
Average household size	2.11

Marital status

Status	Male	Female
Never married	43.0%	29.2%
Married	37.6%	38.5%
Separated	0.0%	0.0%
Widowed	1.1%	1.0%
Divorced	18.3%	31.3%

Education

Less than 9th grade 0.0%

Some HS, no diploma 3.1%

HS graduate 44.1%

Some college, no degree 16.1%

Associate's degree 11.8%

Bachelor's degree 21.1%

Graduate / professional 3.7%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	24.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	5	10.6%
Elementary school	30	63.8%
High school	7	14.9%
College / grad school	5	10.6%

Employment

Industry of employment

Agriculture & mining 30.4%

Retail trade 21.7%

Education & healthcare 20.0%

Manufacturing 10.4%

Transportation & utilities 5.2%

Public administration 5.2%

Other services 2.6%

Construction 1.7%

Wholesale trade 1.7%

Arts, food & hospitality 0.9%

Occupation

Category	%
Management, business & arts	18.3%
Service	11.3%
Sales & office	20.0%
Natural resources & construction	33.0%
Production & transportation	17.4%

Employment type

Type	%
Private sector	73.9%
Government	21.7%
Self-employed	4.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.1%
Carpool	1.9%
Public transit	0.0%
Walk	6.5%
Work from home	5.6%
Other means	0.0%
Avg commute (minutes)	26.8

Poverty

All people 13.5%

Under 18 years 7.7%

18 and over 15.3%

Married-couple families 2.9%

Female-led households 25.0%

Income support

Source	% of households
Social Security	27.5%
Retirement income	13.7%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	7.8%

Health indicators

Condition	%
Obesity	38.7%
High blood pressure	33.7%
High cholesterol	34.3%
Diabetes	10.5%
Heart disease	6.9%
Stroke	3.1%
Asthma	9.4%
Arthritis	26.3%
Kidney disease	2.9%
Pulmonary disease	7.0%
Cancer	7.3%

Behavior / access	%
Smoking	17.9%
Binge drinking	20.6%
No physical activity	25.0%
Less than 7 hrs sleep	33.1%
Depression	18.1%
Fair or poor health	12.7%
Poor mental health	13.8%
Poor physical health	9.8%
No health insurance	8.7%
Visited doctor (checkup)	76.0%
Visited dentist	63.5%
Cholesterol screening	88.6%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	15	9.2%

Disability	%
Any disability	14.4%
Under 18	0.0%
18–64 years	20.0%
65 and over	15.8%

Health insurance coverage

Type	%
Private insurance	59.5%
Public insurance	29.3%
No insurance	25.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	205	95.3%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	215	100.0%
Born in same state	215	100.0%
Born in different state	132	61.4%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	23	10.7%
French	17	7.9%

Ancestry	Count	%
Arab	10	4.7%
English	2	0.9%

Technology access

Metric	% of households
Computer access	47.4%
Internet access	97.1%

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

Frequently asked questions about ZIP code 51637

What city is ZIP code 51637 in?

ZIP code 51637 is primarily assigned to College Springs, Iowa.

What county is ZIP code 51637 in?

ZIP code 51637 falls within Page County, Iowa.

Is ZIP code 51637 mostly owner-occupied?

95% of occupied units in ZIP code 51637 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 51637?

The median home value in ZIP code 51637 is $71,900.

Does ZIP code 51637 have a large veteran population?

9% of civilians in ZIP code 51637 are veterans, above the national average of ~7%.

What is the population of ZIP code 51637?

ZIP code 51637 has an estimated population of 215 residents, with a density of 172 people per square mile.

What timezone is ZIP code 51637 in?

ZIP code 51637 observes the CST timezone.