Zip Code 37148
Portland, Tennessee — Sumner County
📍 ZIP code 37148 is in Portland, Sumner County, Tennessee.
ZIP code 37148 is located in Portland, Sumner County, Tennessee. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 25,421. The area code for ZIP code 37148 is 423.
Quick Answer
Zip code 37148 is in Portland, Tennessee (Sumner County). It has a population of 25,421, median household income of $77,684, and median home value of $273,200.
Population
25,421
Income
$77,684
Home Value
$273,200
Climate
89°F / 27°F
About Zip Code 37148
Zip code 37148 is located in Portland, Tennessee, within Sumner County. Home to approximately 25,421 residents, this area sits at an elevation of 769 ft and falls within the Central (CST/CDT) timezone. The local area code is 423.
The median household income is $77,684 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $273,200, and the cost of living index is 92 (8% below the national average of 100).
Summers average a high of 89°F while winters drop to 27°F. The area receives about 54 in of rain and 2 in of snow annually. The zip code covers 136.7 square miles of land area and 0.2 square miles of water.
Key Statistics
25,421
$77,684
$273,200
Central (CST/CDT)
423
769 ft
136.7 sq mi
36.5
9,919
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Compare With Nearby Zip Codes
| Metric | 37148 | 37048 | 37049 | 37022 | 42134 | 37141 |
|---|---|---|---|---|---|---|
| City | Portland, TN | Cottontown, TN | Cross Plains, TN | Bethpage, TN | Franklin, KY | Cross Plains, TN |
| Population | 25,421 | 6,325 | 4,025 | 6,036 | 19,117 | 1,519 |
| Median Income | $77,684 | $98,012 | $84,677 | $61,250 | $55,347 | $70,625 |
| Home Value | $273,200 | $382,400 | $357,900 | $244,000 | $193,300 | $236,300 |
| Cost of Living | 92 | 122 | 111 | 81 | 66 | 86 |
| Median Age | 36.5 | 42.8 | 38 | 40.8 | 39.1 | 43.3 |
Cost of Living
100 = National Average. Portland's cost of living is 8% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
3.5x
Demographics
Zip code 37148 has a population of 25,421 people with a median age of 36.5. There are 9,919 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Portland (37148) population trend from 2010 to 2024
↓ -35.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
27°F
54 in
2 in
Portland experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 27°F. The area receives about 2 in of snow per year.
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Housing & Economy
Median Home Value
$273,200
Median Household Income
$77,684
With 9,919 housing units across 136.7 square miles, 37148 has a housing density of 73 units per square mile. The home price-to-income ratio is 3.5x.
Location & Geography
Latitude
36.5677°
Longitude
-86.4961°
Land Area
136.7 sq mi
Water Area
0.2 sq mi
Nearby Zip Codes
Zip codes closest to 37148 (Portland, TN) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 37148's $77,684. A way to compare Portland to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 37148 (Portland, TN). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Portland, Tennessee?
Portland, Tennessee uses zip code 37148.
What county is zip code 37148 in?
Zip code 37148 is located in Sumner County, Tennessee.
What is the population of zip code 37148?
The population of zip code 37148 is 25,421 with a median age of 36.5.
Is 37148 in Portland, Tennessee?
Yes, zip code 37148 is in Portland, Sumner County, Tennessee. The area code is 423.
Frequently Asked Questions
What city is zip code 37148 in?
Zip code 37148 is in Portland, Tennessee. It is part of Sumner County and uses the Central (CST/CDT) timezone.
What is zip code 37148?
Zip code 37148 is a U.S. postal code in Portland, Tennessee (Sumner County). It has a population of 25,421 and covers 136.7 square miles.
What is the population of zip code 37148?
The population of zip code 37148 (Portland, TN) is 25,421 with a median age of 36.5. There are approximately 9,919 housing units in this area.
What is the median income in zip code 37148?
The median household income in zip code 37148 (Portland, TN) is $77,684 per year. The cost of living index is 92 (100 = national average).
What is the average home price in zip code 37148?
The median home value in zip code 37148 (Portland, TN) is $273,200. The cost of living index is 92 compared to the national average of 100.
What county is zip code 37148 in?
Zip code 37148 is located in Sumner County, Tennessee. The primary city is Portland.
What is the area code for zip code 37148?
Zip code 37148 in Portland, TN uses area code 423. It is located in the Central (CST/CDT) timezone.
Is zip code 37148 a good place to live?
Zip code 37148 (Portland, TN) has a cost of living index of 92 (100 = national average), a median household income of $77,684, and median home values of $273,200. The median age is 36.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 37148?
The cost of living index for zip code 37148 (Portland, TN) is 92, where 100 represents the national average. This area is below the national average. Median home value: $273,200.
What schools serve zip code 37148?
Zip code 37148 in Portland, Tennessee is served by the local school district of Sumner County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.