ZIP 63129 vs ZIP 63123

Source:

Saint Louis, MO — Saint Louis, MO

This side-by-side compares ZIP 63129 (Saint Louis, MO) and ZIP 63123 (Saint Louis, MO) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 63129 has a population of 52,718 at 976 people per square mile, while ZIP 63123 has 49,308 at 1,518 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 63129 reports a median household income of $94,888 against $77,055 in ZIP 63123, with per-capita income of $49,033 vs $44,373. The share of adults holding a bachelor's degree or higher is 42.4% in 63129 and 37.6% in 63123. Poverty rate reads 6.6% vs 7.9%, and unemployment 3.3% vs 2.2% — 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 $295,600 in 63129 versus $219,400 in 63123, with median rent of $1,108 and $1,006 per month respectively. Homeownership rate is 79.2% vs 74.9%. 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
63129
Saint Louis, MO
63123
Saint Louis, MO
Population 52,718 49,308
Median Household Income $94,888 $77,055
Per Capita Income $49,033 $44,373
Median Age 44.4 40.9
Bachelor's Degree or Higher 42.4% 37.6%
Poverty Rate 6.6% 7.9%
Unemployment Rate 3.3% 2.2%
Median Home Value $295,600 $219,400
Median Rent (monthly) $1,108 $1,006
Homeownership Rate 79.2% 74.9%
Population Density (per sq mi) 976 1,518

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

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63129
Saint Louis, MO
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63123
Saint Louis, MO
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What are common questions about this comparison?

How do ZIP codes 63129 and 63123 compare?
ZIP 63129 (Saint Louis, MO) has a population of 52,718 and a median household income of $94,888. ZIP 63123 (Saint Louis, MO) has a population of 49,308 and a median household income of $77,055.
Which ZIP code has higher income, 63129 or 63123?
ZIP 63129 (Saint Louis, MO) has a higher median household income of $94,888 compared to $77,055 for ZIP 63123.
How do I compare two ZIP codes on PlainZIP?
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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.