Postal Codes

37148 ZIP Code

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ZIP code 37148 covers Portland, Tennessee, with a population of about 25,421 and a median household income of $77,684.

Population
25,421193 per square mile
Median age
36.52.2 points below the US average
Median household income
$77,6841.2× the Tennessee median
Poverty rate
10.6%1.8 points below the US average
Typical home value
$333,656up 26.3% in five years
Median rent
$1,082about the Tennessee median
Degree or higher
14.4%20.6 points below the US average
Homeownership
75.1%10.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
360

Where 37148 is

Portland, Tennessee — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population25,421
Median age36.5
Family households76.8%
Born outside the US3%
Speaks a language other than English at home5.5%
White (non-Hispanic)89.1%
Black (non-Hispanic)2.8%
Asian (non-Hispanic)0.2%
Hispanic or Latino5.6%
Veterans7.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$77,684
Income per person$31,191
Poverty rate10.6%
Households on SNAP or cash assistance8.2%

Household income distribution

Under $10k2.1%
$10–15k2.8%
$15–20k2.1%
$20–25k5.8%
$25–30k2.6%
$30–35k4.7%
$35–40k3.9%
$40–45k3.8%
$45–50k3.3%
$50–60k6.1%
$60–75k11.2%
$75–100k15.6%
$100–125k16.6%
$125–150k9.5%
$150–200k6.4%
$200k or more3.6%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed11,740
Mean adjusted gross income$70,808
Returns declaring $200,000 or more2.7%
Returns, under $25k25.8%
Returns, $25k–$50k26.4%
Returns, $50k–$75k17.6%
Returns, $75k–$100k11.9%
Returns, $100k–$200k15.5%
Returns, $200k or more2.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$273,200
Median gross rent$1,082
Rent as a share of household income33.1%
Owner-occupied75.1%
Vacant homes7.5%
Median year built1995

What the homes are

Detached house77.5%
Attached house1.2%
2 to 4 units5.4%
5 to 19 units2.6%
20 or more units0.6%
Mobile home12.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$333,656as of 2026-07
Typical home value, 1 yearup 0.6%
Typical home value, 5 yearsup 26.3%
Typical home value, 10 yearsup 117.6%
Typical asking rent$1,600as of 2026-07
Typical home value since 2000
200020132026$333,656$105,009

$105,009 in 2000 to $333,656 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.9%
Bachelor's degree or higher14.4%
High school diploma or higher87.6%
Works from home8.3%
Drives to work alone80.5%
Takes public transport0%
Commutes 45 minutes or more25%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity42.6% 9.2 pts above the national average of 33.4%
Diagnosed diabetes13% 1 pts above the national average of 12%
Currently smokes19.9% 6.7 pts above the national average of 13.2%
High blood pressure37.8% 3.7 pts above the national average of 34.1%
Fair or poor general health23.6% 3.3 pts above the national average of 20.3%
No health insurance (18–64)12.5% 1.2 pts above the national average of 11.3%
Depression31.8% 9.9 pts above the national average of 21.9%
No leisure-time physical activity27.5% 2.1 pts above the national average of 25.4%
Arthritis32.4% 7.3 pts above the national average of 25.1%
Binge drinking15% 1 pts below the national average of 16%
Taking blood pressure medication74.9% same as the national average of 74.7%
Cancer (non-skin)8.3% 0.6 pts above the national average of 7.7%
Current asthma11.4% 1 pts above the national average of 10.4%
Coronary heart disease6.9% 0.7 pts above the national average of 6.2%
Routine check-up in past year76.2% 0.5 pts below the national average of 76.7%
Cholesterol screening85.6% same as the national average of 85.9%
Cognitive disability19.4% 4.6 pts above the national average of 14.8%
Colorectal screening62.1% 2.2 pts below the national average of 64.3%
COPD9.4% 2.8 pts above the national average of 6.6%
Visited a dentist56.9% 4.4 pts below the national average of 61.3%
Any disability37.7% 7 pts above the national average of 30.7%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol39.5% 3.3 pts above the national average of 36.2%
Independent living disability10.1% 1.7 pts above the national average of 8.4%
Mammography use71.1% 4.8 pts below the national average of 75.9%
Poor mental health (14+ days)21.1% 4.3 pts above the national average of 16.8%
Mobility disability16.4% 2.4 pts above the national average of 14%
Poor physical health (14+ days)16.1% 2.6 pts above the national average of 13.5%
Self-care disability4.2% same as the national average of 4%
Sleeps under 7 hours38.8% 2.4 pts above the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost17% 4 pts above the national average of 13%
Vision disability5.6% same as the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments360
People employed10,155
Annual payroll$522,319,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 31.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 14 census tracts this ZIP code covers
Expected annual loss32.3 out of 100
Community resilience41.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought86.4Relatively Moderate at its worst in this ZIP code
Strong wind77.2Relatively High at its worst in this ZIP code
Cold wave75.9Relatively High at its worst in this ZIP code
Tornado75.2Very High at its worst in this ZIP code
Ice storm71.7Relatively High at its worst in this ZIP code
Earthquake71.3Relatively Moderate at its worst in this ZIP code
Hail69.7Relatively Moderate at its worst in this ZIP code
Winter weather65.3Relatively High at its worst in this ZIP code
Lightning56.1Relatively High at its worst in this ZIP code
Wildfire53.9Very Low at its worst in this ZIP code
Landslide42.7Relatively Low at its worst in this ZIP code
Heat wave31.2Relatively Moderate at its worst in this ZIP code
Hurricane27.3Very Low at its worst in this ZIP code
River flooding21.9Relatively Moderate at its worst in this ZIP code
Compared with Tennessee and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTennesseeUnited States
Median household income$77,684$67,097$78,538
Income per person$31,191$37,866$43,289
Poverty rate10.6%13.8%12.4%
Median home value$273,200$256,800$303,400
Median gross rent$1,082$1,122$1,348
Homeownership75.1%67%65%
Bachelor's degree or higher14.4%30.4%35%
Unemployment rate2.9%4.7%5.2%
Works from home8.3%11.4%13.5%
Born outside the US3%5.9%13.9%
Median age36.538.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationPORTLAND SEWAGE PLT, TN US2.9 km away
Rain in a year54 in
Snow in a year2 in

Average high and low by month

January45.3°F / 26.6°F4.2 in rain, 0.2 in snow
February50.3°F / 29.5°F4.69 in rain, 1.5 in snow
March59.1°F / 37°F5.08 in rain, 0.3 in snow
April69.8°F / 46.5°F5.24 in rain
May77.7°F / 56.6°F5.8 in rain
June85.3°F / 64.8°F4.36 in rain
July88.8°F / 68.5°F4.57 in rain
August88.1°F / 66.9°F4.15 in rain
September82.2°F / 59.6°F3.64 in rain
October71.4°F / 47.9°F3.69 in rain
November58.9°F / 37.4°F3.78 in rain
December48.9°F / 30.2°F5.11 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket4% of this ZIP code's area
Far from a supermarket4% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Sumner County School District85.2% of this ZIP code's land area
Robertson County School District14.8% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability33more vulnerable than 33% of US census tracts
Socioeconomic status45more vulnerable than 45% of US census tracts
Household characteristics35more vulnerable than 35% of US census tracts
Racial and ethnic minority status12more vulnerable than 12% of US census tracts
Housing type and transport35more vulnerable than 35% of US census tracts
Walkability3.8 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

37119 Mitchellville, TN7.8 km away
37048 Cottontown, TN12.1 km away
37049 Cross Plains, TN15.3 km away
37141 Orlinda, TN17.9 km away
37022 Bethpage, TN17.9 km away
42135 Franklin, KY18.4 km away
42134 Franklin, KY18.5 km away
37188 White House, TN18.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Sumner County85.2% of this ZIP code's land area
Robertson County14.8% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area131.85 sq mi
Water area0.19 sq mi
Population density193 people per sq mi
Latitude, longitude36.5673, -86.5059

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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