ZIP 80116 vs ZIP 80104

Source:

Franktown, CO — Castle Rock, CO

This side-by-side compares ZIP 80116 (Franktown, CO) and ZIP 80104 (Castle Rock, CO) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 80116 has a population of 3,942 at 18 people per square mile, while ZIP 80104 has 27,588 at 137 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 80116 reports a median household income of $146,000 against $134,335 in ZIP 80104, with per-capita income of $75,026 vs $59,720. The share of adults holding a bachelor's degree or higher is 60.8% in 80116 and 55.8% in 80104. Poverty rate reads 2.9% vs 4.2%, and unemployment 1.6% vs 3.8% — 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 $960,400 in 80116 versus $624,200 in 80104, with median rent of $1,435 and $1,880 per month respectively. Homeownership rate is 96.7% vs 79.4%. 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
80116
Franktown, CO
80104
Castle Rock, CO
Population 3,942 27,588
Median Household Income $146,000 $134,335
Per Capita Income $75,026 $59,720
Median Age 52.2 38.2
Bachelor's Degree or Higher 60.8% 55.8%
Poverty Rate 2.9% 4.2%
Unemployment Rate 1.6% 3.8%
Median Home Value $960,400 $624,200
Median Rent (monthly) $1,435 $1,880
Homeownership Rate 96.7% 79.4%
Population Density (per sq mi) 18 137

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

Full Profile
80116
Franktown, CO
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Full Profile
80104
Castle Rock, CO
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What are common questions about this comparison?

How do ZIP codes 80116 and 80104 compare?
ZIP 80116 (Franktown, CO) has a population of 3,942 and a median household income of $146,000. ZIP 80104 (Castle Rock, CO) has a population of 27,588 and a median household income of $134,335.
Which ZIP code has higher income, 80116 or 80104?
ZIP 80116 (Franktown, CO) has a higher median household income of $146,000 compared to $134,335 for ZIP 80104.
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.