Residential delivery area · Tennessee
ZIP Code 37046: College Grove, TN
ZIP code 37046 uses the postal name College Grove, Tennessee and lies mostly in Williamson County (92% of its land), reaching into Rutherford County and Marshall County (Census 2020 ZIP-county file). About 7,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $178,228 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- College Grove · its only residential ZIP
- County
- Williamson County (92%); Rutherford County (6%); Marshall County (2%)
- Metro area
- Nashville-Davidson--Murfreesboro--Franklin, TN
- House districts
- TN-5 (94%), TN-4 (6%) 119th Congress, by share of land
- State
- Tennessee
- Time zone
- Central
- Land area
- 71.4 sq mi · 102 people per sq mi
Where is ZIP code 37046?
37046 centers on 35.782°, -86.701° and covers 71.4 square miles of land plus 0.0 of water. It borders 9 ZIP codes: 37060, 37014, 37153, 37067, 37034, 37174, 37179, 37128, 37064.
The map draws ZIP code areas only. For the streets inside 37046, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 37046 compare with the rest of Williamson County?
| Measure | 37046 | In Williamson County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 7,310 | 12th of 16 | 244th of 636 |
| Median household income | $178k | 1st of 14 | 3rd of 425 |
| Median home value | $980k | 2nd of 14 | 2nd of 436 |
Its median household income is higher than in 98% of U.S. residential ZIP codes, and it is denser than 54% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 37046?
The 2020 Census counted 5,941 people in 37046; the ACS, which samples households over 2020-2024, estimates 7,310. Between the 2010 and 2020 censuses its population grew 62.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 7,310±913 (90% margin)
- 2020 Census count
- 5,941+62.1% since 2010 (3,665)
- Households
- 2,589
- Median age
- 41.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 37046?
Of the 7,310 people the ACS estimates in 37046, 28.9% are under 18 and 15.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.0%).
- Under 1828.9%
- 18 to 6455.3%
- 65 and older15.8%
- White, not Hispanic90.0%
- Other or two or more3.8%
- Hispanic or Latino3.0%
- Black, not Hispanic1.6%
- Asian, not Hispanic1.5%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 37046 earn?
Median household income is $178,228 (ACS 2020-2024), the highest of the 14 ranked ZIP codes in Williamson County. It rose from $134,820 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $178,228±$19,621
- Income per person
- $90,404
- Below the poverty line
- 8.6%
- Unemployed (of the labor force)
- 1.3%
- Adults 25+ with a bachelor's degree
- 63.8%
- Adjusted gross income per tax return, 2022
- $342,5943,390 returns; wages 45% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 37046?
FHFA's house price index for 37046, built from repeat sales and appraisals of the same homes, rose 150% from 2015 to 2025 and rose 77% from 2020 to 2025, and moved +13.3% in 2025.
- Median home value (owners' estimate)
- $979,900
- Median gross rent
- $3,500 or more
- Homes owned by their occupants
- 87.9%
- Housing units
- 2,847
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 37046?
150 business establishments had a location in this ZIP code in 2023, 61 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction29
- Professional, scientific, and technical services19
- Retail trade15
- Real estate and rental and leasing12
- Wholesale trade10
- Administrative and support and waste management and remediation services10
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 37046?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37060 | Eagleville | 3,396 | $97k | 4.4 mi |
| 37014 | Arrington | 3,227 | $105k | 7.4 mi |
| 37153 | Rockvale | 5,682 | $99k | 8.2 mi |
| 37067 | Franklin | 31,556 | $112k | 9.8 mi |
| 37034 | Chapel Hill | 8,867 | $88k | 10.0 mi |
| 37174 | Spring Hill | 53,900 | $105k | 11.9 mi |
| 37179 | Thompsons Station | 18,043 | $136k | 11.9 mi |
| 37128 | Murfreesboro | 79,268 | $94k | 12.8 mi |
| 37064 | Franklin | 67,513 | $128k | 15.9 mi |
| 37135 | Nolensville | 24,409 | $149k | 9.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.