Zip Code 29420
North Charleston, South Carolina — Dorchester County
📍 ZIP code 29420 is in North Charleston, Dorchester County, South Carolina.
ZIP code 29420 is located in North Charleston, Dorchester County, South Carolina. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 23,311. The area code for ZIP code 29420 is 843.
Quick Answer
Zip code 29420 is in North Charleston, South Carolina (Dorchester County). It has a population of 23,311, median household income of $69,043, and median home value of $283,900.
Population
23,311
Income
$69,043
Home Value
$283,900
Climate
91°F / 39°F
About Zip Code 29420
Zip code 29420 is located in North Charleston, South Carolina, within Dorchester County. Home to approximately 23,311 residents, this area sits at an elevation of 23 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 843.
The median household income is $69,043 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $283,900, and the cost of living index is 97 (3% below the national average of 100).
Summers average a high of 91°F while winters drop to 39°F. The area receives about 53 in of rain annually. The zip code covers 11.2 square miles of land area and 0.2 square miles of water.
Key Statistics
23,311
$69,043
$283,900
Eastern (EST/EDT)
843
23 ft
11.2 sq mi
35.1
9,537
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Compare With Nearby Zip Codes
| Metric | 29420 | 29418 | 29423 | 29404 | 29406 | 29456 |
|---|---|---|---|---|---|---|
| City | North Charleston, SC | North Charleston, SC | North Charleston, SC | North Charleston, SC | North Charleston, SC | Ladson, SC |
| Population | 23,311 | 25,589 | 0 | 2,217 | 32,482 | 39,280 |
| Median Income | $69,043 | $62,421 | $0 | $74,821 | $50,640 | $79,038 |
| Home Value | $283,900 | $234,500 | $0 | $0 | $209,700 | $244,400 |
| Cost of Living | 97 | 77 | 100 | 95 | 69 | 88 |
| Median Age | 35.1 | 37.2 | 0 | 21.4 | 33.6 | 31.9 |
Cost of Living
100 = National Average. North Charleston's cost of living is 3% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
4.1x
Demographics
Zip code 29420 has a population of 23,311 people with a median age of 35.1. There are 9,537 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
North Charleston (29420) population trend from 2010 to 2024
↑ 33.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
91°F
39°F
53 in
0 in
North Charleston experiences hot summers with average highs around 91°F. Winters are mild with lows averaging 39°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$283,900
Median Household Income
$69,043
With 9,537 housing units across 11.2 square miles, 29420 has a housing density of 852 units per square mile. The home price-to-income ratio is 4.1x.
Location & Geography
Latitude
32.9319°
Longitude
-80.1008°
Land Area
11.2 sq mi
Water Area
0.2 sq mi
Nearby Zip Codes
Zip codes closest to 29420 (North Charleston, SC) with distances:
All Zip Codes in North Charleston, SC
Other zip codes serving North Charleston:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 29420's $69,043. A way to compare North Charleston to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 29420 (North Charleston, SC). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is North Charleston, South Carolina?
North Charleston, South Carolina uses zip code 29420 along with 6 other zip codes.
What county is zip code 29420 in?
Zip code 29420 is located in Dorchester County, South Carolina.
What is the population of zip code 29420?
The population of zip code 29420 is 23,311 with a median age of 35.1.
Is 29420 in North Charleston, South Carolina?
Yes, zip code 29420 is in North Charleston, Dorchester County, South Carolina. The area code is 843.
Frequently Asked Questions
What city is zip code 29420 in?
Zip code 29420 is in North Charleston, South Carolina. It is part of Dorchester County and uses the Eastern (EST/EDT) timezone.
What is zip code 29420?
Zip code 29420 is a U.S. postal code in North Charleston, South Carolina (Dorchester County). It has a population of 23,311 and covers 11.2 square miles.
What is the population of zip code 29420?
The population of zip code 29420 (North Charleston, SC) is 23,311 with a median age of 35.1. There are approximately 9,537 housing units in this area.
What is the median income in zip code 29420?
The median household income in zip code 29420 (North Charleston, SC) is $69,043 per year. The cost of living index is 97 (100 = national average).
What is the average home price in zip code 29420?
The median home value in zip code 29420 (North Charleston, SC) is $283,900. The cost of living index is 97 compared to the national average of 100.
What county is zip code 29420 in?
Zip code 29420 is located in Dorchester County, South Carolina. The primary city is North Charleston.
What is the area code for zip code 29420?
Zip code 29420 in North Charleston, SC uses area code 843. It is located in the Eastern (EST/EDT) timezone.
Is zip code 29420 a good place to live?
Zip code 29420 (North Charleston, SC) has a cost of living index of 97 (100 = national average), a median household income of $69,043, and median home values of $283,900. The median age is 35.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 29420?
The cost of living index for zip code 29420 (North Charleston, SC) is 97, where 100 represents the national average. This area is below the national average. Median home value: $283,900.
What schools serve zip code 29420?
Zip code 29420 in North Charleston, South Carolina is served by the local school district of Dorchester County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.