US > South Carolina > Dorchester County > North Charleston, SC 29420

29420 ZIP Code Profile, Map, Data & Demographics

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ZIP Code 29420: Basic Data & USPS Preferred City Name

Preferred Name, USPS
North Charleston, SC 29420

Acceptable Alternative
Charleston, SC 29420
N Charleston, SC 29420

Not Acceptable, USPS
Chas, SC 29420
No Chas, SC 29420

  • ZIP Code Type: STANDARD
  • County: Dorchester County
  • Centroid: Latitude 32.924, Longitude -80.099
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 29420 has segments in 2 Counties (Charleston, Dorchester).

  • Businesses Addresses: 322
  • PO Box Addresses: 0
  • Residential Addresses: 10,044
    • Multi-Family Addresses: 1,946
    • Single Family Addresses: 8,098

The ZIP Code maps and database are updated 4 times per year.
Database updated: April 1, 2025, Maps updated: May 1, 2024.

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North Charleston, SC 29420 Data & Demographics (As of July 1, 2024)

POPULATION

Total Population 27,561 (100%)
Population in Households 27,547 (99.9%)
Population in Families 22,506 (81.7%)
Population in Group Quarters1 14 ( 0.1%)
Population Density 2,628
Diversity Index2 77
 
 

INCOME

Median Household Income $71,501
Average Household Income $96,039
% of Income for Mortgage4 28%
Per Capita Income $37,276
Wealth Index5 76
Socioeconomic Status Index6 Moderate (48.6)
 

HOUSING

Total HU (Housing Units) 11,375 (100%)
Owner Occupied HU 6,009 (52.8%)
Renter Occupied HU 4,688 (41.2%)
Vacant Housing Units 678 ( 6.0%)
Median Home Value $315,560
Average Home Value $346,563
Housing Affordability Index3 93
 

HOUSEHOLDS

Total Households 10,697
Average Household Size 2.58
Family Households 7,072
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2024 2024-2029
Population 2.03% 0.88%
Households 2.56% 1.26%
Families   1.02%
Median Household Income   2.75%
Per Capita Income   3.45%
Owner Occupied HU   1.51%

North Charleston, SC 29420 - Peer Comparisons by Rank and Percentile

The table below compares 29420 to the other 397 ZIP Codes in South Carolina by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 70 83rd
Population Density # 14 97th
Median Household Income # 94 77th
Housing Affordability Index # 104 26th
Per Capita Income # 109 73rd
Diversity Index # 8 98th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Carolina Census Data Comparison Tool.


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