ZIP 37031 · Castalian Springs
Who lives in ZIP code 37031 (Castalian Springs, TN): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Castalian Springs, TN · Sumner County
uszips 2026
People3,926
Median age53.5
Household income$98,114
Home value$355,700
Median rent—
Poverty8.3%
College degree+21.3%
Commute29 min
Place
- Metro area
- Nashville-Davidson--Murfreesboro--Franklin, TN
- Wider region
- Nashville-Davidson--Murfreesboro, TN
- Time zone
- Central
- Density
- 40 / sq mi
- Housing units
- 1,707
Spans 2 counties
Share of the ZIP's people in each county.
Age mix
20.0% are 65 or older; 84.8% are adults.
Household income
42.2% of households earn $100K+. Median per person: $45,635.
Education (adults 25+)
42.2% of degrees are in STEM fields.
Race
4.4% Hispanic or Latino (of any race).
Households & family
- Married
- 63.3%
- Never married
- 20.6%
- Divorced
- 9.5%
- Widowed
- 6.6%
- Family size
- 2.61
- Dual-income families
- 73.7%
Housing
- Own their home
- 94.1%
- Rent burden
- —
- Men / women
- 50% / 50%
Work
- In labor force
- 67.2%
- Unemployment
- 0.7%
- Self-employed
- 15.3%
- Farmers
- 3.7%
Community
- Charitable givers
- 15.8%
- Veterans
- 7.6%
- With a disability
- 14.9%
- No health insurance
- 7.1%
- Limited English
- 0.0%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.