ZIP 37031 vs ZIP 37087

Source:

Castalian Springs, TN — Lebanon, TN

This side-by-side compares ZIP 37031 (Castalian Springs, TN) and ZIP 37087 (Lebanon, TN) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 37031 has a population of 3,712 at 36 people per square mile, while ZIP 37087 has 41,132 at 96 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 37031 reports a median household income of $98,114 against $82,143 in ZIP 37087, with per-capita income of $44,690 vs $40,360. The share of adults holding a bachelor's degree or higher is 21.2% in 37031 and 29.9% in 37087. Poverty rate reads 8.3% vs 11.9%, and unemployment 0.7% vs 2.1% — 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 $352,600 in 37031 versus $386,200 in 37087, with median rent of and $1,196 per month respectively. Homeownership rate is 94.1% vs 71.9%. 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
37031
Castalian Springs, TN
37087
Lebanon, TN
Population 3,712 41,132
Median Household Income $98,114 $82,143
Per Capita Income $44,690 $40,360
Median Age 53.5 38
Bachelor's Degree or Higher 21.2% 29.9%
Poverty Rate 8.3% 11.9%
Unemployment Rate 0.7% 2.1%
Median Home Value $352,600 $386,200
Median Rent (monthly) $1,196
Homeownership Rate 94.1% 71.9%
Population Density (per sq mi) 36 96

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

Full Profile
37031
Castalian Springs, TN
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Full Profile
37087
Lebanon, TN
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What are common questions about this comparison?

How do ZIP codes 37031 and 37087 compare?
ZIP 37031 (Castalian Springs, TN) has a population of 3,712 and a median household income of $98,114. ZIP 37087 (Lebanon, TN) has a population of 41,132 and a median household income of $82,143.
Which ZIP code has higher income, 37031 or 37087?
ZIP 37031 (Castalian Springs, TN) has a higher median household income of $98,114 compared to $82,143 for ZIP 37087.
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.