ZIP 78721 vs ZIP 78723

Source:

Austin, TX — Austin, TX

This side-by-side compares ZIP 78721 (Austin, TX) and ZIP 78723 (Austin, TX) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 78721 has a population of 11,425 at 1,192 people per square mile, while ZIP 78723 has 28,330 at 1,576 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 78721 reports a median household income of $84,573 against $100,329 in ZIP 78723, with per-capita income of $57,366 vs $55,797. The share of adults holding a bachelor's degree or higher is 51.6% in 78721 and 58.4% in 78723. Poverty rate reads 25.8% vs 12.3%, and unemployment 6.8% vs 6.0% — 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 $523,000 in 78721 versus $562,300 in 78723, with median rent of $1,482 and $1,724 per month respectively. Homeownership rate is 51.3% vs 48.6%. 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
78721
Austin, TX
78723
Austin, TX
Population 11,425 28,330
Median Household Income $84,573 $100,329
Per Capita Income $57,366 $55,797
Median Age 33.8 34.8
Bachelor's Degree or Higher 51.6% 58.4%
Poverty Rate 25.8% 12.3%
Unemployment Rate 6.8% 6.0%
Median Home Value $523,000 $562,300
Median Rent (monthly) $1,482 $1,724
Homeownership Rate 51.3% 48.6%
Population Density (per sq mi) 1,192 1,576

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

Full Profile
78721
Austin, TX
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78723
Austin, TX
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What are common questions about this comparison?

How do ZIP codes 78721 and 78723 compare?
ZIP 78721 (Austin, TX) has a population of 11,425 and a median household income of $84,573. ZIP 78723 (Austin, TX) has a population of 28,330 and a median household income of $100,329.
Which ZIP code has higher income, 78721 or 78723?
ZIP 78723 (Austin, TX) has a higher median household income of $100,329 compared to $84,573 for ZIP 78721.
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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.