Postal Codes

37308 ZIP Code

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ZIP code 37308 covers Birchwood, Tennessee, with a population of about 2,957 and a median household income of $69,398.

Population
2,95780 per square mile
Median age
37.31.4 points below the US average
Median household income
$69,398about the Tennessee median
Poverty rate
6.5%5.9 points below the US average
Typical home value
$351,985up 30.5% in five years
Median rent
$74434% below the Tennessee median
Degree or higher
13.9%21.1 points below the US average
Homeownership
84.9%19.9 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
14

Where 37308 is

Birchwood, 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

Population2,957
Median age37.3
Family households69.9%
Born outside the US0.2%
Speaks a language other than English at home0.4%
White (non-Hispanic)93%
Black (non-Hispanic)1.7%
Asian (non-Hispanic)0%
Hispanic or Latino1.1%
Veterans3.5%
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$69,398
Income per person$33,788
Poverty rate6.5%
Households on SNAP or cash assistance13.7%

Household income distribution

Under $10k0.9%
$10–15k3.7%
$15–20k5.6%
$20–25k2.3%
$25–30k6.0%
$30–35k2.0%
$35–40k5.7%
$40–45k2.7%
$45–50k2.7%
$50–60k6.9%
$60–75k18.0%
$75–100k17.1%
$100–125k7.8%
$125–150k7.7%
$150–200k6.8%
$200k or more4.2%

Income as declared to the IRS

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

Tax returns filed1,290
Mean adjusted gross income$67,527
Returns declaring $200,000 or more3.1%
Returns, under $25k26.4%
Returns, $25k–$50k24.8%
Returns, $50k–$75k16.3%
Returns, $75k–$100k12.4%
Returns, $100k–$200k17.1%
Returns, $200k or more3.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$238,200
Median gross rent$744
Owner-occupied84.9%
Vacant homes18.7%
Median year built1997

What the homes are

Detached house66.7%
Attached house1.7%
Mobile home31.6%
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$351,985as of 2026-07
Typical home value, 1 yearup 1%
Typical home value, 5 yearsup 30.5%
Typical home value, 10 yearsup 102.9%
Typical home value since 2000
200020132026$351,985$97,259

$97,259 in 2000 to $351,985 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.9%
Bachelor's degree or higher13.9%
High school diploma or higher82%
Works from home10%
Drives to work alone75.1%
Takes public transport0.8%
Commutes 45 minutes or more20.2%
Health

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

Obesity37.7% 4.3 pts above the national average of 33.4%
Diagnosed diabetes14.7% 2.7 pts above the national average of 12%
Currently smokes21.3% 8.1 pts above the national average of 13.2%
High blood pressure42.4% 8.3 pts above the national average of 34.1%
Fair or poor general health24.7% 4.4 pts above the national average of 20.3%
No health insurance (18–64)11.5% same as the national average of 11.3%
Depression29.7% 7.8 pts above the national average of 21.9%
No leisure-time physical activity26.9% 1.5 pts above the national average of 25.4%
Arthritis34.5% 9.4 pts above the national average of 25.1%
Binge drinking14.5% 1.5 pts below the national average of 16%
Taking blood pressure medication77.7% 3 pts above the national average of 74.7%
Cancer (non-skin)9.5% 1.8 pts above the national average of 7.7%
Current asthma11.5% 1.1 pts above the national average of 10.4%
Coronary heart disease8.4% 2.2 pts above the national average of 6.2%
Routine check-up in past year77.7% 1 pts above the national average of 76.7%
Cholesterol screening87% 1.1 pts above the national average of 85.9%
Cognitive disability18.9% 4.1 pts above the national average of 14.8%
Colorectal screening63.7% 0.6 pts below the national average of 64.3%
COPD11% 4.4 pts above the national average of 6.6%
Visited a dentist56.7% 4.6 pts below the national average of 61.3%
Any disability37.9% 7.2 pts above the national average of 30.7%
Hearing disability9% 2.3 pts above the national average of 6.7%
High cholesterol40.9% 4.7 pts above the national average of 36.2%
Independent living disability10.3% 1.9 pts above the national average of 8.4%
Mammography use73.5% 2.4 pts below the national average of 75.9%
Poor mental health (14+ days)19.9% 3.1 pts above the national average of 16.8%
Mobility disability18.3% 4.3 pts above the national average of 14%
Poor physical health (14+ days)17.1% 3.6 pts above the national average of 13.5%
Self-care disability4.7% 0.7 pts above the national average of 4%
Sleeps under 7 hours37.2% 0.8 pts above the national average of 36.4%
Stroke4.2% 0.8 pts above the national average of 3.4%
All natural teeth lost14.2% 1.2 pts above the national average of 13%
Vision disability5.9% same as the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments14
People employed40
Annual payroll$2,068,000
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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 45.3% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 2 census tracts this ZIP code covers
Expected annual loss39.9 out of 100
Community resilience54.2 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.

Landslide96Relatively Moderate at its worst in this ZIP code
Strong wind85.8Very High at its worst in this ZIP code
Wildfire82.2Relatively Low at its worst in this ZIP code
Tornado79.8Relatively High at its worst in this ZIP code
Lightning75Relatively High at its worst in this ZIP code
Earthquake74.8Relatively Low at its worst in this ZIP code
Winter weather68.1Relatively Moderate at its worst in this ZIP code
Cold wave63.6Relatively High at its worst in this ZIP code
Hail59.7Relatively Low at its worst in this ZIP code
River flooding51.5Relatively Moderate at its worst in this ZIP code
Ice storm51.1Relatively Low at its worst in this ZIP code
Hurricane46.1Very Low at its worst in this ZIP code
Drought33.6Relatively Low at its worst in this ZIP code
Heat wave21.7Relatively Low 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$69,398$67,097$78,538
Income per person$33,788$37,866$43,289
Poverty rate6.5%13.8%12.4%
Median home value$238,200$256,800$303,400
Median gross rent$744$1,122$1,348
Homeownership84.9%67%65%
Bachelor's degree or higher13.9%30.4%35%
Unemployment rate2.9%4.7%5.2%
Works from home10%11.4%13.5%
Born outside the US0.2%5.9%13.9%
Median age37.338.938.7
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 stationDAYTON 2SE, TN US13.7 km away
Rain in a year59 in
Snow in a year2 in

Average high and low by month

January47.4°F / 28.3°F5.21 in rain, 0.3 in snow
February52°F / 31.4°F5.09 in rain, 0.6 in snow
March60.9°F / 37.6°F5.33 in rain, 0.4 in snow
April70.5°F / 46.1°F5.38 in rain
May78°F / 55°F4.79 in rain
June84.7°F / 63.4°F4.5 in rain
July87.6°F / 67°F5.29 in rain
August87.4°F / 65.9°F3.88 in rain
September82.1°F / 59.6°F4.82 in rain
October71.2°F / 47.5°F3.62 in rain
November59.4°F / 37°F4.79 in rain
December50.3°F / 31.3°F6.04 in rain, 0.3 in snow
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 supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
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.

Hamilton County School District63.3% of this ZIP code's land area
Meigs County School District36.7% 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 vulnerability49more vulnerable than 49% of US census tracts
Socioeconomic status51more vulnerable than 51% of US census tracts
Household characteristics62more vulnerable than 62% of US census tracts
Racial and ethnic minority status9more vulnerable than 9% of US census tracts
Housing type and transport52more vulnerable than 52% of US census tracts
Walkability3.1 out of 20Least walkable
Nearby ZIP codes

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

37336 Georgetown, TN7.9 km away
37373 Sale Creek, TN13.3 km away
37304 Bakewell, TN16 km away
37321 Dayton, TN17.1 km away
37312 Cleveland, TN19.6 km away
37309 Calhoun, TN20.7 km away
37310 Charleston, TN20.7 km away
37379 Soddy Daisy, TN21.3 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.

Hamilton County63.3% of this ZIP code's land area
Meigs County36.7% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area37 sq mi
Water area5.7 sq mi
Population density80 people per sq mi
Latitude, longitude35.3520, -84.9618

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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