Residential delivery area · Tennessee
ZIP Code 37148: Portland, TN
ZIP code 37148 uses the postal name Portland, Tennessee and lies mostly in Sumner County (85% of its land) with the rest in Robertson County (Census 2020 ZIP-county file). About 26,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $81,633 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Portland (11%), Graball (1%), New Deal (under 1%), Oak Grove (under 1%) and Mitchellville (under 1%), and under 1% in smaller places; 86% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Portland · its only residential ZIP
- County
- Sumner County (85%); Robertson County (15%)
- Census places
- Portland (11%); Graball (1%) census-designated place; New Deal (under 1%) census-designated place; Oak Grove (under 1%) census-designated place
- Neighborhood
- Highland Rim Terrace GeoNames
- Metro area
- Nashville-Davidson--Murfreesboro--Franklin, TN
- House districts
- TN-6 (85%), TN-7 (15%) 119th Congress, by share of land
- State
- Tennessee
- Time zone
- Central
- Land area
- 131.9 sq mi · 199 people per sq mi
Where is ZIP code 37148?
37148 centers on 36.577°, -86.498° and covers 131.9 square miles of land plus 0.2 of water. It borders 7 ZIP codes: 37048, 37049, 37022, 42134, 37141, 37066, 37186.
The map draws ZIP code areas only. For the streets inside 37148, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 37148 compare with the rest of Sumner County?
| Measure | 37148 | In Sumner County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 26,274 | 4th of 9 | 83rd of 636 |
| Median household income | $82k | 5th of 8 | 96th of 425 |
| Median home value | $295k | 7th of 9 | 129th of 436 |
Its median household income is higher than in 64% of U.S. residential ZIP codes, and it is denser than 63% 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 37148?
The 2020 Census counted 25,318 people in 37148; the ACS, which samples households over 2020-2024, estimates 26,274. Between the 2010 and 2020 censuses its population grew 13.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 26,274
- 2020 Census count
- 25,318+13.4% since 2010 (22,320)
- Households
- 9,436
- Median age
- 37.3
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 37148?
Of the 26,274 people the ACS estimates in 37148, 26.4% are under 18 and 13.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.1%).
- Under 1826.4%
- 18 to 6460.1%
- 65 and older13.5%
- White, not Hispanic89.1%
- Hispanic or Latino5.9%
- Other or two or more2.7%
- Black, not Hispanic2.1%
- Asian, not Hispanic0.2%
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 37148 earn?
Median household income is $81,633 (ACS 2020-2024), the 5th highest of the 8 ranked ZIP codes in Sumner County. It rose from $70,509 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $81,633
- Income per person
- $33,493
- Below the poverty line
- 10.8%
- Unemployed (of the labor force)
- 4.3%
- Adults 25+ with a bachelor's degree
- 15.1%
- Adjusted gross income per tax return, 2022
- $70,80811,740 returns; wages 71% 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 37148?
FHFA's house price index for 37148, built from repeat sales and appraisals of the same homes, rose 137% from 2015 to 2025 and rose 61% from 2020 to 2025, and moved +1.1% in 2025.
- Median home value (owners' estimate)
- $295,000
- Median gross rent
- $1,122
- Homes owned by their occupants
- 75.7%
- Housing units
- 10,180
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 37148?
366 business establishments had a location in this ZIP code in 2023, 48 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade57
- Construction51
- Manufacturing42
- Health care and social assistance36
- Transportation and warehousing35
- Administrative and support and waste management and remediation services30
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 37148?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37048 | Cottontown | 6,380 | $100k | 7.9 mi |
| 37049 | Cross Plains | 4,160 | $90k | 10.3 mi |
| 37022 | Bethpage | 5,728 | $79k | 10.9 mi |
| 42134 | Franklin, KY | 19,380 | $59k | 11.0 mi |
| 37141 | Orlinda | 1,618 | $76k | 11.5 mi |
| 37066 | Gallatin | 64,650 | $82k | 12.5 mi |
| 37186 | Westmoreland | 10,709 | $60k | 15.4 mi |
| 37188 | White House | 18,241 | $91k | 12.1 mi (near) |
| 42120 | Adolphus, KY | 2,745 | $65k | 13.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.