51647 ZIP Code — Northboro, IA

Page County, Iowa

ZIP code 51647 is located in Northboro, Iowa, within Page County. It covers approximately 24.96 square miles and serves a population of 233 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51647

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Owner-occupancy is high at 87%, well above the national average.

The dominant occupation class is natural resources, construction, and trades, with manufacturing as the leading industry. The average commute of 19 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Notable community characteristics include disability rates above the national average at 23%.

Overall, ZIP code 51647 reflects a community defined by high homeownership and a significant Social Security-dependent population.

233

population

24.96

sq mi land

Standard

ZIP type

Central (CT)

timezone

51647 ZIP code map

Cities in ZIP code 51647

Below are the cities the US Postal Service accepts for ZIP code 51647. Using any city not on this list may result in mail delivery delays.

City	Status
Northboro	Acceptable

Demographics updated 05/2026

Population
Total population	233
Population density	9 / sq mi
State FIPS	19
County FIPS	145

Geography
Land area	24.96 sq mi
Water area	0.00 sq mi
Latitude	40.6100
Longitude	-95.3546
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	52.6%	49.0%	40.1%
$50k – $100k	26.3%	34.1%	33.4%
$100k – $200k	0.0%	15.2%	21.5%
Over $200k	21.1%	1.7%	5.0%

Demographics & statistics

233

Population

People per sq mi

38.4

Median age

Median household income

$36,631

Per capita income

Median home value

Median monthly rent

86.6%

Home ownership

6.9%

Poverty rate

0.0%

Unemployment

100

Housing units

23.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

15–19

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	53	22.7%
18 and over	180	77.3%
65 and over	62	26.6%
Median age	38.4 years

Race & ethnicity

White 100%

Group	Count	%
White	233	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	52.6%	49.0%	40.1%
$50k – $100k	26.3%	34.1%	33.4%
$100k – $200k	0.0%	15.2%	21.5%
Over $200k	21.1%	1.7%	5.0%

Under $10k 0.9%

$10k–$15k 13.4%

$15k–$25k 33.9%

$25k–$35k 4.5%

$35k–$50k 1.8%

$50k–$75k 8.0%

$75k–$100k 19.6%

$100k–$150k 2.7%

$200k+ 15.2%

Range	% of households
Under $10k	0.9%
$10k–$15k	13.4%
$15k–$25k	33.9%
$25k–$35k	4.5%
$35k–$50k	1.8%
$50k–$75k	8.0%
$75k–$100k	19.6%
$100k–$150k	2.7%
$200k+	15.2%
Median income	$0

Housing

Home values

Under $50k 32.0%

$50k–$100k 23.7%

$150k–$200k 8.2%

$200k–$300k 3.1%

$300k–$500k 1.0%

$500k–$1M 32.0%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	86.6%
Renter occupied	13.4%
Vacant	2.6%
Single-family detached	96.5%
Large apartment buildings	0.0%
Mobile homes	2.6%
Median rooms	7.7
Avg household size (owned)	2.21

Year built

Era	%
2020 or later	0.0%
2010–2019	0.9%
2000–2009	0.0%
1990–1999	0.9%
1980–1989	0.0%
1970–1979	27.0%
1960–1969	6.1%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	65.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	0.9%
2 bedrooms	9.6%
3 bedrooms	45.2%
4 bedrooms	41.7%
5+ bedrooms	1.7%

Vehicles per household

Vehicles	% of households
No vehicle	12.5%
1 vehicle	33.9%
2 vehicles	33.0%
3 or more	20.5%

Heating fuel

Fuel type	%
Utility gas	0.9%
Electricity	11.6%
Propane / LP gas	87.5%

Households & families

Household type	Count	%
Married-couple family	44	39.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	32	28.6%
Female householder, no spouse	36	32.1%
Households with children under 18	39	34.8%
Households with seniors (65+)	57	50.9%
Average household size	2.08

Marital status

Status	Male	Female
Never married	40.0%	22.1%
Married	55.0%	43.3%
Separated	0.0%	0.0%
Widowed	0.0%	32.7%
Divorced	5.0%	1.9%

Education

Less than 9th grade 0.0%

Some HS, no diploma 7.8%

HS graduate 52.8%

Some college, no degree 9.4%

Associate's degree 6.1%

Bachelor's degree 13.3%

Graduate / professional 10.6%

Metric	%
HS diploma or higher	92.2%
Bachelor's or higher	23.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	2	6.7%
Elementary school	14	46.7%
High school	4	13.3%
College / grad school	10	33.3%

Employment

Industry of employment

Manufacturing 22.8%

Education & healthcare 19.3%

Construction 15.8%

Wholesale trade 14.9%

Professional & management 8.8%

Agriculture & mining 7.9%

Retail trade 2.6%

Transportation & utilities 2.6%

Finance & real estate 2.6%

Arts, food & hospitality 1.8%

Other services 0.9%

Occupation

Category	%
Management, business & arts	26.3%
Service	13.2%
Sales & office	5.3%
Natural resources & construction	30.7%
Production & transportation	24.6%

Employment type

Type	%
Private sector	74.6%
Government	3.5%
Self-employed	21.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	67.5%
Carpool	14.0%
Public transit	0.9%
Walk	16.7%
Work from home	0.9%
Other means	0.0%
Avg commute (minutes)	19.3

Poverty

All people 6.9%

Under 18 years 0.0%

18 and over 8.9%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	54.5%
Retirement income	29.5%
Supplemental Security	4.5%
Cash public assistance	8.9%
Food stamps / SNAP	8.9%

Health indicators

Condition	%
Obesity	39.5%
High blood pressure	33.8%
High cholesterol	34.1%
Diabetes	10.3%
Heart disease	6.8%
Stroke	3.0%
Asthma	9.0%
Arthritis	25.7%
Kidney disease	2.8%
Pulmonary disease	6.8%
Cancer	7.0%

Behavior / access	%
Smoking	18.4%
Binge drinking	21.6%
No physical activity	25.2%
Less than 7 hrs sleep	33.5%
Depression	17.3%
Fair or poor health	12.7%
Poor mental health	13.2%
Poor physical health	9.8%
No health insurance	9.2%
Visited doctor (checkup)	75.2%
Visited dentist	62.7%
Cholesterol screening	89.0%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	9	5.0%

Disability	%
Any disability	22.7%
Under 18	0.0%
18–64 years	7.6%
65 and over	71.0%

Health insurance coverage

Type	%
Private insurance	76.8%
Public insurance	30.9%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	217	93.1%
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)	233	100.0%
Born in same state	233	100.0%
Born in different state	167	71.7%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	23	9.9%
Arab	22	9.4%
English	10	4.3%

Ancestry	Count	%
French	8	3.4%
Polish	1	0.4%

Technology access

Metric	% of households
Computer access	48.1%
Internet access	83.9%

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

Frequently asked questions about ZIP code 51647

What city is ZIP code 51647 in?

ZIP code 51647 is primarily assigned to Northboro, Iowa.

What county is ZIP code 51647 in?

ZIP code 51647 falls within Page County, Iowa.

Does ZIP code 51647 have a large retiree population?

55% of households in ZIP code 51647 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 51647 have an older population?

27% of residents in ZIP code 51647 are 65 or older, above the national average of ~17%.

Is ZIP code 51647 mostly owner-occupied?

87% of occupied units in ZIP code 51647 are owner-occupied, well above the national average.

What is the population of ZIP code 51647?

ZIP code 51647 has an estimated population of 233 residents, with a density of 9 people per square mile.

What timezone is ZIP code 51647 in?

ZIP code 51647 observes the CST timezone.