ZIP 00685 vs ZIP 00670

Source:

San Sebastian, PR — Las Marias, PR

This side-by-side compares ZIP 00685 (San Sebastian, PR) and ZIP 00670 (Las Marias, PR) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 00685 has a population of 42,831 at 213 people per square mile, while ZIP 00670 has 9,807 at 83 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 00685 reports a median household income of $20,310 against $16,367 in ZIP 00670, with per-capita income of $12,313 vs $10,577. The share of adults holding a bachelor's degree or higher is 21.7% in 00685 and 14.5% in 00670. Poverty rate reads 49.3% vs 57.7%, and unemployment 13.4% vs 5.3% — 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 $115,700 in 00685 versus $86,600 in 00670, with median rent of $502 and $416 per month respectively. Homeownership rate is 73.8% vs 72.9%. 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
00685
San Sebastian, PR
00670
Las Marias, PR
Population 42,831 9,807
Median Household Income $20,310 $16,367
Per Capita Income $12,313 $10,577
Median Age 46.3 44.9
Bachelor's Degree or Higher 21.7% 14.5%
Poverty Rate 49.3% 57.7%
Unemployment Rate 13.4% 5.3%
Median Home Value $115,700 $86,600
Median Rent (monthly) $502 $416
Homeownership Rate 73.8% 72.9%
Population Density (per sq mi) 213 83

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

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00685
San Sebastian, PR
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00670
Las Marias, PR
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What are common questions about this comparison?

How do ZIP codes 00685 and 00670 compare?
ZIP 00685 (San Sebastian, PR) has a population of 42,831 and a median household income of $20,310. ZIP 00670 (Las Marias, PR) has a population of 9,807 and a median household income of $16,367.
Which ZIP code has higher income, 00685 or 00670?
ZIP 00685 (San Sebastian, PR) has a higher median household income of $20,310 compared to $16,367 for ZIP 00670.
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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.