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South Carolina ZIP Codes
Dorchester County
North Charleston, SC
29420
29420 ZIP Code — North Charleston, SC
Dorchester County, South Carolina
ZIP code 29420 is located in
North Charleston ,
South Carolina ,
within Dorchester County .
It covers approximately 10.03 square miles and serves a population of
22,808 residents.
This is a po box ZIP code in the Eastern (ET) timezone,
served by area code 843 .
About ZIP code 29420
The housing stock consists of a mix of housing types. Most homes were built in the 2000s, giving the area an established character. Median home value is $269,900. Owner-occupancy sits near the national average at 62%.
Median household income is $73,339.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.
17% of residents lack health insurance, above the national average.
Notable community characteristics include a notable veteran presence at 13% of civilians, above the national average of 7%.
29420 ZIP code map
View map of 29420
Cities in ZIP code 29420
Below are the cities the US Postal Service accepts for ZIP code 29420. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
22,808
Population density
2,274 / sq mi
State FIPS
45
County FIPS
035
Geography
Land area
10.03 sq mi
Water area
0.15 sq mi
Latitude
32.9405
Longitude
-80.0982
Timezone
Eastern (ET)
Area code
843
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
39.1%
38.8%
45.8%
$50k – $100k
34.9%
34.0%
30.5%
$100k – $200k
21.0%
23.1%
18.6%
Over $200k
4.9%
4.1%
5.1%
Demographics & statistics
$73,339
Median household income
$269,900
Median home value
$1,373
Median monthly rent
29.7%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 5,079 22.3%
18 and over 17,729 77.7%
65 and over 2,707 11.9%
Median age 36.2 years
Race & ethnicity
Black or African American
42%
American Indian / Alaska Native
0.5%
Group Count %
Black or African American 10,288 42%
White 9,415 38.4%
Hispanic or Latino 1,702 6.9%
Other race 1,320 5.4%
Asian 952 3.9%
Two or more races 706 2.9%
American Indian / Alaska Native 127 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
39.1%
38.8%
45.8%
$50k – $100k
34.9%
34.0%
30.5%
$100k – $200k
21.0%
23.1%
18.6%
Over $200k
4.9%
4.1%
5.1%
Range % of households
Under $10k 5.9%
$10k–$15k 1.6%
$15k–$25k 6.0%
$25k–$35k 6.9%
$35k–$50k 15.1%
$50k–$75k 15.1%
$75k–$100k 16.4%
$100k–$150k 15.7%
$150k–$200k 8.2%
$200k+ 9.2%
Median income $73,339
Housing
Housing overview
Metric Value
Median home value $269,900
Median rent / month $1,373
Owner occupied 62.1%
Renter occupied 37.9%
Vacant 6.3%
Single-family detached 62.4%
Large apartment buildings 5.9%
Mobile homes 9.7%
Median rooms 5.7
Avg household size (owned) 2.67
Year built
Era %
2020 or later 0.3%
2010–2019 15.1%
2000–2009 27.8%
1990–1999 20.7%
1980–1989 18.9%
1970–1979 8.9%
1960–1969 6.7%
1950–1959 1.6%
1940–1949 0.0%
1939 or earlier 0.0%
Bedrooms
Size % of units
No bedroom (studio) 4.1%
1 bedroom 3.4%
2 bedrooms 18.4%
3 bedrooms 48.0%
4 bedrooms 21.3%
5+ bedrooms 4.8%
Vehicles per household
Vehicles % of households
No vehicle 1.9%
1 vehicle 35.8%
2 vehicles 40.2%
3 or more 22.1%
Heating fuel
Fuel type %
Utility gas 19.2%
Electricity 78.8%
Propane / LP gas 0.8%
Fuel oil 0.1%
Solar 0.3%
No fuel used 0.8%
Households & families
Household type Count %
Married-couple family 4,243 48.9%
Cohabiting couple 476 5.5%
Male householder, no spouse 1,154 13.3%
Female householder, no spouse 2,810 32.4%
Households with children under 18 2,739 31.5%
Households with seniors (65+) 1,875 21.6%
Average household size 2.63
Marital status
Status Male Female
Never married 37.6% 37.0%
Married 52.3% 44.6%
Separated 0.8% 3.4%
Widowed 1.5% 4.8%
Divorced 7.8% 10.2%
Education
Some college, no degree
20.9%
Graduate / professional
10.6%
Metric %
HS diploma or higher 88.3%
Bachelor's or higher 29.7%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 189 3.3%
Kindergarten 105 1.8%
Elementary school 2,518 44.0%
High school 1,529 26.7%
College / grad school 1,380 24.1%
Employment
Industry of employment
Education & healthcare
19.0%
Arts, food & hospitality
11.8%
Professional & management
9.8%
Transportation & utilities
7.8%
Public administration
7.7%
Finance & real estate
3.7%
Occupation
Category %
Management, business & arts 37.7%
Service 15.2%
Sales & office 24.2%
Natural resources & construction 9.4%
Production & transportation 13.5%
Employment type
Type %
Private sector 79.3%
Government 18.2%
Self-employed 2.5%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 81.4%
Carpool 8.9%
Public transit 0.0%
Walk 1.0%
Work from home 6.9%
Other means 1.8%
Avg commute (minutes) 27.3
Poverty
Married-couple families
4.5%
Female-led households
29.2%
Income support
Source % of households
Social Security 23.3%
Retirement income 26.1%
Supplemental Security 2.3%
Cash public assistance 0.5%
Food stamps / SNAP 11.2%
Health indicators
Condition %
Obesity 37.3%
High blood pressure 33.4%
High cholesterol 30.9%
Diabetes 10.1%
Heart disease 4.6%
Stroke 2.7%
Asthma 10.6%
Arthritis 22.5%
Kidney disease 2.5%
Pulmonary disease 5.6%
Cancer 4.6%
Behavior / access %
Smoking 18.6%
Binge drinking 18.7%
No physical activity 23.6%
Less than 7 hrs sleep 40.0%
Depression 22.8%
Fair or poor health 14.8%
Poor mental health 15.7%
Poor physical health 10.2%
No health insurance 17.8%
Visited doctor (checkup) 76.4%
Visited dentist 65.8%
Cholesterol screening 88.3%
Teeth loss 13.3%
Veterans & disability
Veterans Count %
Civilian veterans 2,363 13.4%
Disability %
Any disability 11.0%
Under 18 3.2%
18–64 years 9.8%
65 and over 32.1%
Health insurance coverage
Type %
Private insurance 62.0%
Public insurance 32.5%
No insurance 16.6%
Uninsured under 19 15.1%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 21,912 96.1%
Spanish 1,467 6.7%
Other Indo-European 1,165 5.3%
Asian & Pacific Islander 55 0.3%
Other languages 247 1.1%
Place of birth & citizenship
Origin Count %
Native born (US) 20,549 90.1%
Born in same state 20,254 88.8%
Born in different state 11,784 51.7%
Foreign born 295 1.3%
Naturalized citizen 2,259 9.9%
Not a US citizen 542 24.0%
Ancestry
Ancestry Count %
Arab 2,117 9.3%
French 1,482 6.5%
Italian 1,234 5.4%
English 125 0.5%
Polish 125 0.5%
Ancestry Count %
German 50 0.2%
Irish 48 0.2%
Norwegian 29 0.1%
Dutch 17 0.1%
Technology access
Metric % of households
Computer access 38.1%
Internet access 97.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 29420
What city is ZIP code 29420 in?
ZIP code 29420 is primarily assigned to North Charleston, South Carolina.
What county is ZIP code 29420 in?
ZIP code 29420 falls within Dorchester County, South Carolina.
Does ZIP code 29420 have a large veteran population?
13% of civilians in ZIP code 29420 are veterans, above the national average of ~7%.
What is the population of ZIP code 29420?
ZIP code 29420 has an estimated population of 22,808 residents, with a density of 2,274 people per square mile.
What is the typical home value in ZIP code 29420?
The median home value in ZIP code 29420 is $269,900.
What is the median household income in ZIP code 29420?
The median household income in ZIP code 29420 is $73,339, below the national median of ~$75,000.
What timezone is ZIP code 29420 in?
ZIP code 29420 observes the EST timezone.
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