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:
| 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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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.