ZIP 00601 vs ZIP 00631

Source:

Adjuntas, PR — Castaner, PR

This side-by-side compares ZIP 00601 (Adjuntas, PR) and ZIP 00631 (Castaner, PR) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 00601 has a population of 18,570 at 111 people per square mile, while ZIP 00631 has 1,852 at 178 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 00601 reports a median household income of $19,454 against $19,278 in ZIP 00631, with per-capita income of $10,223 vs $9,431. The share of adults holding a bachelor's degree or higher is 18.2% in 00601 and 32.1% in 00631. Poverty rate reads 59.9% vs 54.5%, and unemployment 20.5% vs 21.7% — 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 $94,200 in 00601 versus $99,800 in 00631, with median rent of $427 and $336 per month respectively. Homeownership rate is 67.5% vs 65.1%. 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
00601
Adjuntas, PR
00631
Castaner, PR
Population 18,570 1,852
Median Household Income $19,454 $19,278
Per Capita Income $10,223 $9,431
Median Age 45.3 48
Bachelor's Degree or Higher 18.2% 32.1%
Poverty Rate 59.9% 54.5%
Unemployment Rate 20.5% 21.7%
Median Home Value $94,200 $99,800
Median Rent (monthly) $427 $336
Homeownership Rate 67.5% 65.1%
Population Density (per sq mi) 111 178

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

Full Profile
00601
Adjuntas, PR
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00631
Castaner, PR
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What are common questions about this comparison?

How do ZIP codes 00601 and 00631 compare?
ZIP 00601 (Adjuntas, PR) has a population of 18,570 and a median household income of $19,454. ZIP 00631 (Castaner, PR) has a population of 1,852 and a median household income of $19,278.
Which ZIP code has higher income, 00601 or 00631?
ZIP 00601 (Adjuntas, PR) has a higher median household income of $19,454 compared to $19,278 for ZIP 00631.
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.