| City: | Charleston, South Carolina |
| City Alias: | N Charleston, North Charleston |
| Names to Avoid: | Chas |
| County: | Charleston County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:08:13 PM |
| Population: | No Population Data |
| Area Codes: | 843 / 854 |
| Classification: | PO Box |
| Coordinates: | 32.7738, -79.9333 |
| Quick Link: |
Street delivery in the area routes through Cross County Road, which accounts for 118 ZIP+4 records. That's the only street associated with this ZIP, though residents and businesses in the surrounding area receive carrier delivery through neighboring ZIP 29418. The concentration of PO Boxes relative to street addresses isn't unusual for Charleston's outer postal infrastructure, where multiple facilities handle different service functions within the same general area.
Only Cross County Road appears in this ZIP's delivery records, with all 118 street-based ZIP+4 codes assigned to that single thoroughfare. This single-street pattern is typical of PO Box-focused facilities where the street designation primarily identifies the post office location itself rather than a residential delivery area.
Insufficient data for educational attainment. Insufficient data for health insurance coverage. Insufficient data for poverty. Insufficient data for school enrollment.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0% |
| 9th to 12th grade, no diploma: | 0 | 0% |
| High school graduate (includes equivalency): | 0 | 0% |
| Some college, no degree: | 0 | 0% |
| Associate's degree: | 0 | 0% |
| Bachelor's degree: | 0 | 0% |
| Graduate or professional degree: | 0 | 0% |
| Total: | 0 | 100% |
| High school or higher: | 0 | 0% |
| Bachelor's degree or higher: | 0 | 0% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 29423 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 98 people with an annual payroll of $4,236,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 746Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $997,000Source: CBP |
| Annual Payroll: | $4,236,000Source: CBP |
| # of Employees: | 98Source: CBP |
ZIP Code 29423 is located in Charleston County, South Carolina, within the Charleston-North Charleston, SC Metropolitan Statistical Area (CBSA 16700) and South Carolina's 6th Congressional District. This Metro area has a population of 664,607 people, about 0.00% of whom live in ZIP Code 29423. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Charleston-North Charleston, SCSource: Census |
| CBSA Number: | 16700Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 664,607Source: Census |
| MSA: | Charleston-North Charleston, SC MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 8062.93 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4513330Source: Census |
| Place Name: | Charleston city; South CarolinaSource: Census |
We could not locate which school district 29423 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.