ZIP 29456 vs ZIP 29423

Source:

Ladson, SC — Charleston, SC

This side-by-side compares ZIP 29456 (Ladson, SC) and ZIP 29423 (Charleston, SC) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 29456 has a population of 27,864 at 590 people per square mile, while ZIP 29423 has 956 at 9,778 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 29456 reports a median household income of $78,361 against in ZIP 29423, with per-capita income of $37,076 vs . The share of adults holding a bachelor's degree or higher is 24.0% in 29456 and in 29423. Poverty rate reads 9.0% vs , and unemployment 4.5% vs — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $270,100 in 29456 versus in 29423, with median rent of $1,650 and per month respectively. Homeownership rate is 61.7% vs . When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.

Compare different ZIP codes:

vs
Metric
29456
Ladson, SC
29423
Charleston, SC
Population 27,864 956
Median Household Income $78,361
Per Capita Income $37,076
Median Age 31.9
Bachelor's Degree or Higher 24.0%
Poverty Rate 9.0%
Unemployment Rate 4.5%
Median Home Value $270,100
Median Rent (monthly) $1,650
Homeownership Rate 61.7%
Population Density (per sq mi) 590 9,778

Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.

Full Profile
29456
Ladson, SC
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Full Profile
29423
Charleston, SC
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What are common questions about this comparison?

How do ZIP codes 29456 and 29423 compare?
ZIP 29456 (Ladson, SC) has a population of 27,864 and a median household income of $78,361. ZIP 29423 (Charleston, SC) has a population of 956 and a median household income of —.
Which ZIP code has higher income, 29456 or 29423?
Income data is not available for one or both of these ZIP codes.
How do I compare two ZIP codes on PlainZIP?
Visit plainzip.com/compare, enter two 5-digit U.S. ZIP codes, and click Compare. You can also navigate directly to /compare/XXXXX-vs-YYYYY to share a specific comparison.

All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Data sourced from official U.S. Census ACS and HUD-USPS ZIP crosswalk data. See our methodology for details. Retrieved and formatted by PlainZIP Editorial.