ZipCodesToGo
North Carolina ZIP Codes
Martin County
Oak City, NC
27857
27857 ZIP Code — Oak City, NC
Martin County, North Carolina
ZIP code 27857 is located in
Oak City ,
North Carolina ,
within Martin County .
It covers approximately 73.88 square miles and serves a population of
1,096 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 252 .
About ZIP code 27857
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $81,500. Owner-occupancy sits near the national average at 58%.
Median household income is $53,125. SNAP benefit usage at 20% of households reflects economic stress in the area. 72% 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 31 minutes is near the national average.
College attainment at 6% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of diabetes (20%), smoking (23%) compared to national benchmarks.
Overall, ZIP code 27857 reflects a community defined by a trades-oriented workforce, a significant Social Security-dependent population, and elevated reliance on food assistance.
27857 ZIP code map
View map of 27857
Cities in ZIP code 27857
Below are the cities the US Postal Service accepts for ZIP code 27857. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,096
Population density
15 / sq mi
State FIPS
37
County FIPS
117
Geography
Land area
73.88 sq mi
Water area
0.05 sq mi
Latitude
35.9752
Longitude
-77.3076
Timezone
Eastern (ET)
Area code
252
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
59.5%
44.4%
$50k – $100k
31.9%
30.9%
30.6%
$100k – $200k
11.1%
7.6%
19.1%
Over $200k
0.0%
1.9%
6.0%
Demographics & statistics
$53,125
Median household income
Age distribution
Age summary
Group Count %
Under 18 123 11.2%
18 and over 973 88.8%
65 and over 399 36.4%
Median age 52.8 years
Race & ethnicity
Black or African American
52.9%
Group Count %
Black or African American 585 52.9%
White 501 45.3%
Hispanic or Latino 10 0.9%
Other race 10 0.9%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
59.5%
44.4%
$50k – $100k
31.9%
30.9%
30.6%
$100k – $200k
11.1%
7.6%
19.1%
Over $200k
0.0%
1.9%
6.0%
Range % of households
Under $10k 13.1%
$10k–$15k 7.3%
$15k–$25k 8.0%
$25k–$35k 3.0%
$35k–$50k 16.6%
$50k–$75k 27.2%
$75k–$100k 5.1%
$100k–$150k 1.4%
$150k–$200k 18.3%
Median income $53,125
Housing
Housing overview
Metric Value
Median home value $81,500
Median rent / month $519
Owner occupied 58.3%
Renter occupied 41.7%
Vacant 11.7%
Single-family detached 71.3%
Large apartment buildings 0.0%
Mobile homes 22.5%
Median rooms 5.5
Avg household size (owned) 1.84
Year built
Era %
2020 or later 0.0%
2010–2019 4.5%
2000–2009 24.2%
1990–1999 9.7%
1980–1989 19.9%
1970–1979 6.6%
1960–1969 6.6%
1950–1959 3.9%
1940–1949 1.5%
1939 or earlier 23.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 8.5%
2 bedrooms 8.9%
3 bedrooms 71.0%
4 bedrooms 9.6%
5+ bedrooms 2.0%
Vehicles per household
Vehicles % of households
No vehicle 1.9%
1 vehicle 31.8%
2 vehicles 37.7%
3 or more 28.6%
Heating fuel
Fuel type %
Utility gas 3.1%
Electricity 57.1%
Propane / LP gas 33.5%
Fuel oil 6.3%
Households & families
Household type Count %
Married-couple family 173 30.2%
Cohabiting couple 7 1.2%
Male householder, no spouse 141 24.6%
Female householder, no spouse 252 44.0%
Households with children under 18 72 12.6%
Households with seniors (65+) 359 62.7%
Average household size 1.91
Marital status
Status Male Female
Never married 21.5% 32.2%
Married 44.5% 28.8%
Separated 14.5% 1.0%
Widowed 8.1% 21.8%
Divorced 11.5% 16.2%
Education
Some college, no degree
27.7%
Graduate / professional
1.1%
Metric %
HS diploma or higher 87.1%
Bachelor's or higher 6.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 21 18.8%
Kindergarten 4 3.6%
Elementary school 59 52.7%
High school 8 7.1%
College / grad school 20 17.9%
Employment
Industry of employment
Education & healthcare
24.5%
Transportation & utilities
16.6%
Public administration
12.7%
Agriculture & mining
7.6%
Professional & management
1.0%
Arts, food & hospitality
0.8%
Occupation
Category %
Management, business & arts 26.2%
Service 24.7%
Sales & office 8.4%
Natural resources & construction 20.5%
Production & transportation 20.2%
Employment type
Type %
Private sector 74.4%
Government 24.5%
Self-employed 0.6%
Unpaid family workers 0.6%
Commute
Method %
Drive alone 92.9%
Carpool 1.6%
Public transit 0.0%
Walk 0.0%
Work from home 4.7%
Other means 0.8%
Avg commute (minutes) 31.2
Poverty
Married-couple families
5.8%
Female-led households
8.6%
Income support
Source % of households
Social Security 71.7%
Retirement income 22.5%
Supplemental Security 4.0%
Cash public assistance 0.0%
Food stamps / SNAP 19.7%
Health indicators
Condition %
Obesity 40.9%
High blood pressure 50.5%
High cholesterol 40.0%
Diabetes 19.5%
Heart disease 10.2%
Stroke 6.4%
Asthma 10.8%
Arthritis 34.9%
Kidney disease 5.0%
Pulmonary disease 10.5%
Cancer 7.8%
Behavior / access %
Smoking 23.3%
Binge drinking 10.9%
No physical activity 34.1%
Less than 7 hrs sleep 38.7%
Depression 20.1%
Fair or poor health 24.8%
Poor mental health 14.6%
Poor physical health 15.4%
No health insurance 24.0%
Visited doctor (checkup) 84.6%
Visited dentist 53.2%
Cholesterol screening 91.6%
Teeth loss 24.6%
Veterans & disability
Veterans Count %
Civilian veterans 42 4.3%
Disability %
Any disability 21.1%
Under 18 0.0%
18–64 years 19.3%
65 and over 30.1%
Health insurance coverage
Type %
Private insurance 46.2%
Public insurance 56.9%
No insurance 9.7%
Uninsured under 19 7.3%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,046 95.4%
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) 1,086 99.1%
Born in same state 1,081 98.6%
Born in different state 948 86.5%
Foreign born 5 0.5%
Naturalized citizen 10 0.9%
Not a US citizen 10 100.0%
Ancestry
Ancestry Count %
Arab 183 16.7%
French 146 13.3%
Ancestry Count %
Italian 8 0.7%
Technology access
Metric % of households
Computer access 52.3%
Internet access 89.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 27857
What city is ZIP code 27857 in?
ZIP code 27857 is primarily assigned to Oak City, North Carolina.
What county is ZIP code 27857 in?
ZIP code 27857 falls within Martin County, North Carolina.
Does ZIP code 27857 have a large retiree population?
72% of households in ZIP code 27857 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 27857 have an older population?
36% of residents in ZIP code 27857 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 27857?
6% 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 poverty rate in ZIP code 27857?
16% of residents in ZIP code 27857 live below the poverty line, above the national average.
What timezone is ZIP code 27857 in?
ZIP code 27857 observes the EST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →