Residential delivery area · South Carolina
ZIP Code 29420: North Charleston, SC
ZIP code 29420 is in North Charleston, South Carolina, mostly in Dorchester County (60% of its land) with the rest in Charleston County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024), the least populous of North Charleston's 3 residential ZIP codes. Median household income is $72,661 (Census Bureau, ACS 2020-2024). By Census place, 84% of its land lies in North Charleston; 16% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- North Charleston · 3 residential ZIPs
- County
- Dorchester County (60%); Charleston County (40%)
- Census places
- North Charleston
- Metro area
- Charleston-North Charleston, SC
- House districts
- SC-6 (66%), SC-1 (34%) 119th Congress, by share of land
- State
- South Carolina
- Time zone
- Eastern
- Land area
- 10.0 sq mi · 2,392 people per sq mi
Where is ZIP code 29420?
29420 centers on 32.932°, -80.100° and covers 10.0 square miles of land plus 0.2 of water. It borders 4 ZIP codes: 29418, 29456, 29406, 29485.
The map draws ZIP code areas only. For the streets inside 29420, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 29420 compare with the rest of North Charleston?
| Measure | 29420 | In North Charleston | In Dorchester County | In SC |
|---|---|---|---|---|
| People (ACS 2020-2024) | 23,959 | 3rd of 3 | 6th of 15 | 79th of 424 |
| Median household income | $73k | 1st of 3 | 7th of 12 | 80th of 265 |
| Median home value | $332k | 1st of 3 | 4th of 7 | 52nd of 260 |
Its median household income is higher than in 51% of U.S. residential ZIP codes, and it is denser than 86% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 29420?
The 2020 Census counted 23,619 people in 29420; the ACS, which samples households over 2020-2024, estimates 23,959. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 23,959
- 2020 Census count
- 23,619
- Households
- 9,515
- Median age
- 34.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 29420?
Of the 23,959 people the ACS estimates in 29420, 21.7% are under 18 and 12.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (44.3%), then Black (not Hispanic) (38.9%).
- Under 1821.7%
- 18 to 6466.1%
- 65 and older12.2%
- White, not Hispanic44.3%
- Black, not Hispanic38.9%
- Hispanic or Latino8.5%
- Other or two or more4.2%
- Asian, not Hispanic4.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 29420 earn?
Median household income is $72,661 (ACS 2020-2024), the 7th highest of the 12 ranked ZIP codes in Dorchester County.
- Median household income
- $72,661
- Income per person
- $39,165
- Below the poverty line
- 12.0%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 32.4%
- Adjusted gross income per tax return, 2022
- $63,43711,430 returns; wages 73% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 29420?
FHFA's house price index for 29420, built from repeat sales and appraisals of the same homes, rose 112% from 2015 to 2025 and rose 57% from 2020 to 2025, and moved −2.9% in 2025.
- Median home value (owners' estimate)
- $331,700
- Median gross rent
- $1,529
- Homes owned by their occupants
- 62.2%
- Housing units
- 9,957
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 29420?
325 business establishments had a location in this ZIP code in 2023, 76 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction44
- Accommodation and food services42
- Professional, scientific, and technical services36
- Health care and social assistance33
- Real estate and rental and leasing26
- Other services (except public administration)25
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 29420?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 29418 | North Charleston | 26,052 | $65k | 1.6 mi |
| 29456 | Ladson | 41,214 | $78k | 3.7 mi |
| 29406 | Charleston | 32,001 | $50k | 3.8 mi |
| 29485 | Summerville | 58,507 | $83k | 6.2 mi |
| 29404 | Charleston Afb | 2,334 | $55k | 3.7 mi (near) |
| 29410 | Hanahan | 21,314 | $88k | 5.0 mi (near) |
| 29414 | Charleston | 44,727 | $100k | 6.2 mi (near) |
| 29405 | North Charleston | 26,254 | $57k | 8.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.