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Ohio ZIP Codes
Knox County
Martinsburg, OH
43037
43037 ZIP Code — Martinsburg, OH
Knox County, Ohio
ZIP code 43037 is located in
Martinsburg ,
Ohio ,
within Knox County .
It covers approximately 3.24 square miles and serves a population of
132 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 740 .
43037 ZIP code map
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Cities in ZIP code 43037
Below are the cities the US Postal Service accepts for ZIP code 43037. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
132
Population density
41 / sq mi
State FIPS
39
County FIPS
083
Geography
Land area
3.24 sq mi
Water area
0.01 sq mi
Latitude
40.2804
Longitude
-82.3113
Timezone
Eastern (ET)
Area code
740
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
74.3%
38.4%
43.3%
$50k – $100k
9.9%
38.1%
31.4%
$100k – $200k
15.8%
19.7%
20.0%
Over $200k
0.0%
3.8%
5.2%
Demographics & statistics
$71,250
Median household income
Age distribution
Age summary
Group Count %
Under 18 10 7.6%
18 and over 122 92.4%
65 and over 19 14.4%
Median age 46.4 years
Race & ethnicity
Group Count %
White 125 94.7%
Two or more races 7 5.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
74.3%
38.4%
43.3%
$50k – $100k
9.9%
38.1%
31.4%
$100k – $200k
15.8%
19.7%
20.0%
Over $200k
0.0%
3.8%
5.2%
Range % of households
$15k–$25k 16.7%
$25k–$35k 13.3%
$35k–$50k 11.7%
$50k–$75k 36.7%
$75k–$100k 10.0%
$100k–$150k 3.3%
$150k–$200k 8.3%
Median income $71,250
Housing
Housing overview
Metric Value
Median home value $0
Median rent / month $639
Owner occupied 65.0%
Renter occupied 35.0%
Vacant 10.4%
Single-family detached 85.1%
Large apartment buildings 0.0%
Mobile homes 7.5%
Median rooms 6.0
Avg household size (owned) 1.95
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 0.0%
1990–1999 6.0%
1980–1989 11.9%
1970–1979 1.5%
1960–1969 0.0%
1950–1959 6.0%
1940–1949 11.9%
1939 or earlier 62.7%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 40.3%
3 bedrooms 56.7%
4 bedrooms 1.5%
5+ bedrooms 1.5%
Vehicles per household
Vehicles % of households
No vehicle 13.3%
1 vehicle 21.7%
2 vehicles 38.3%
3 or more 26.7%
Heating fuel
Fuel type %
Utility gas 76.7%
Electricity 23.3%
Households & families
Household type Count %
Married-couple family 20 33.3%
Cohabiting couple 1 1.7%
Male householder, no spouse 6 10.0%
Female householder, no spouse 33 55.0%
Households with children under 18 8 13.3%
Households with seniors (65+) 19 31.7%
Average household size 2.20
Marital status
Status Male Female
Never married 54.8% 27.7%
Married 37.1% 35.4%
Separated 0.0% 0.0%
Widowed 0.0% 4.6%
Divorced 8.1% 32.3%
Education
Some HS, no diploma
14.1%
Some college, no degree
17.4%
Graduate / professional
0.0%
Metric %
HS diploma or higher 85.9%
Bachelor's or higher 3.3%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 5 33.3%
High school 10 66.7%
College / grad school 0 0.0%
Employment
Industry of employment
Education & healthcare
29.1%
Transportation & utilities
5.1%
Professional & management
5.1%
Occupation
Category %
Management, business & arts 30.4%
Service 8.9%
Sales & office 17.7%
Natural resources & construction 27.8%
Production & transportation 15.2%
Employment type
Type %
Private sector 89.9%
Government 5.1%
Self-employed 5.1%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 84.8%
Carpool 3.8%
Public transit 0.0%
Walk 5.1%
Work from home 6.3%
Other means 0.0%
Avg commute (minutes) 30.9
Poverty
Married-couple families
0.0%
Female-led households
33.3%
Income support
Source % of households
Social Security 31.7%
Retirement income 25.0%
Supplemental Security 18.3%
Cash public assistance 0.0%
Food stamps / SNAP 3.3%
Health indicators
Condition %
Obesity 41.2%
High blood pressure 33.6%
High cholesterol 30.1%
Diabetes 10.7%
Heart disease 7.5%
Stroke 3.3%
Asthma 9.9%
Arthritis 28.8%
Kidney disease 3.0%
Pulmonary disease 9.2%
Cancer 6.7%
Behavior / access %
Smoking 23.0%
Binge drinking 17.0%
No physical activity 27.2%
Less than 7 hrs sleep 33.1%
Depression 25.0%
Fair or poor health 16.0%
Poor mental health 16.3%
Poor physical health 11.1%
No health insurance 13.1%
Visited doctor (checkup) 74.1%
Visited dentist 61.6%
Cholesterol screening 87.1%
Teeth loss 16.5%
Veterans & disability
Veterans Count %
Civilian veterans 6 4.9%
Disability %
Any disability 20.5%
Under 18 10.0%
18–64 years 16.5%
65 and over 47.4%
Health insurance coverage
Type %
Private insurance 41.7%
Public insurance 43.2%
No insurance 22.0%
Uninsured under 19 46.7%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 132 100.0%
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) 129 97.7%
Born in same state 129 97.7%
Born in different state 121 91.7%
Foreign born 0 0.0%
Naturalized citizen 3 2.3%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Italian 41 31.1%
French 7 5.3%
Technology access
Metric % of households
Computer access 45.5%
Internet access 85.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 43037
What city is ZIP code 43037 in?
ZIP code 43037 is primarily assigned to Martinsburg, Ohio.
What county is ZIP code 43037 in?
ZIP code 43037 falls within Knox County, Ohio.
How educated is the population of ZIP code 43037?
3% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the population of ZIP code 43037?
ZIP code 43037 has an estimated population of 132 residents, with a density of 41 people per square mile.
What is the median household income in ZIP code 43037?
The median household income in ZIP code 43037 is $71,250, below the national median of ~$75,000.
What timezone is ZIP code 43037 in?
ZIP code 43037 observes the EST timezone.
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