Towns / Tennessee

Signal Mountain, Tennessee

Signal Mountain is a suburb of about 8,800 people in Hamilton County, Tennessee, in the Chattanooga area. Its population has held about steady since 2020. A typical home costs about 3.9 years of the typical household's income, compared with 4.1 across the U.S. The nearest metro area of about a million people or more, Knoxville, is about 97 miles away as the crow flies.

Suburb of Chattanooga

Population
8,824
down 0.3% since 2020
Typical home, 2020-24
$544,300
Hamilton County prices up 18% since 2022
Household income
$141,008
U.S.: $80,734
Prices, Chattanooga area
91.5
U.S. average = 100
Emergency room
7 miles
Chattanooga, TN
To Knoxville
97 mi
straight line

The book's checklist

  • Lower cost of livingEveryday prices run 8.5% below the U.S. average in the Chattanooga metro area.
  • More house for the moneyA typical home costs 3.9 years of the typical household's income here. Across the U.S. it's 4.1.
  • A safer neighborhood1 violent crime was reported in 2025, about 0.1 per 1,000 people (U.S.: 3.3). Property crime: 2.3 per 1,000 (U.S.: 15.3).
  • Schools in town3 public schools: 2 elementary and 1 high school.
  • A hospital close byErlanger Medical Center in Chattanooga, about 7 miles away, has the nearest emergency room.
  • Within reach of a big cityKnoxville is about 97 miles away as the crow flies. The book suggests staying within about 60 miles if you'll miss big-city sports, concerts and theater.

A check means Signal Mountain meets the rule of thumb from Frank and Dave's book. An empty box isn't a deal breaker: it's something to weigh for your family. A question mark means there isn't enough data.

What kind of town

A suburb, not a stand-alone small town

Signal Mountain runs into the built-up area around Chattanooga (Census Bureau, 2020 urban areas). We include suburbs under 20,000 people because some still feel like small towns, but daily life here is closer to the suburbs than to the towns Frank and Dave's book describes. Weigh it against towns farther out.

The book sorts small towns into six types. These labels come only from the numbers; take the quiz to see which type fits your family.

For a lifetime

Homes and money

Typical home value, as owners valued them in 2020-2024
$544,300U.S.: $332,700
Home prices since then
Up 18%Hamilton County, 2022 to 2025
Typical household income
$141,008U.S.: $80,734
Homes owned by the people living in them
88%U.S.: 65%
Typical property tax bill
$3,877 a yearTennessee: $1,442
Homes built before 1940
6%U.S.: 12%
Homes built since 2010
8%U.S.: 11%
Vacation and seasonal homes
0%U.S.: 3%
Everyday prices
91.5U.S. average = 100 (the Chattanooga metro area)

Home values and rents are what households told the Census Bureau across 2020 to 2024, so they trail today's market: county prices have moved up 18% since 2022. Everyday prices are the government's average for the Chattanooga metro area, not Signal Mountain alone. Check current listings before you budget.

Sources: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates; Federal Housing Finance Agency, House Price Index for counties (all transactions); U.S. Bureau of Economic Analysis, Regional Price Parities, 2024.

The people

Population, 2025 estimate
8,8242020: 8,851
Median age
44.3 yearsU.S.: 38.9
Age 65 and older
25%U.S.: 17%
Under 18
27%U.S.: 22%
Adults with a bachelor's degree or more
73%U.S.: 36%
Moved here from another county or state in the past year
3%U.S.: 6%

Sources: U.S. Census Bureau, Population Estimates (Vintage 2025); U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

Work

Biggest lines of work
Schools, health care and social services (24%); professional and business services (18%); finance, insurance and real estate (14%)
Unemployment rate
2%U.S.: 5%
Average commute
28 minutesU.S.: 26 minutes
Work from home
26%U.S.: 15%
Below the poverty line
3%U.S.: 12%

Sources: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

Health care

Nearest emergency room: Erlanger Medical Center, Chattanooga, TN, about 7 miles away. It's a general hospital. Medicare gives it 4 of 5 stars.

Look up doctors, clinics and the hospitals themselves on Medicare's Care Compare. Ask where the most serious cases are sent.

Sources: Centers for Medicare & Medicaid Services, Hospital General Information.

Schools

3 public schools in Signal Mountain, run by Hamilton County.

See each school on the federal school search, then check test scores and graduation rates on Tennessee's school report card.

Sources: National Center for Education Statistics, Common Core of Data, 2023-24 (via the Urban Institute Education Data Portal); National Center for Education Statistics, IPEDS institution directory, 2024.

Internet

Homes with cable, fiber or DSL internet
88%U.S.: 76%
Homes with any internet subscription
93%U.S.: 91%

Before you buy, look up the address on the FCC's National Broadband Map to see which providers serve it.

Sources: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

Weather

January average low
28°F
July average high
88°F
Days 90°F or hotter
17 a year
Nights at or below freezing
82 a year
Rain and melted snow
63.1 inches a year
Snow
4 inches a year
Elevation
1,753 feet

Weather station: Soddy Daisy-mowbray Mtn (11 miles away). Averages for 1991 to 2020.

Sources: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020; U.S. Geological Survey, 3D Elevation Program.

Getting around

Straight-line miles. The road is always longer, and as the book says, an interstate at 70 is a different trip from a farm road at 45. Check the real drive: Erlanger Medical Center, Chattanooga, Knoxville.

Hamilton County is in a metro area of 250,000 to 1 million people (USDA rural-urban code 2, on a scale where 1 is the biggest metro areas and 9 the most rural counties).

For a day

5 places on the National Register of Historic Places, including the Bachman-McCoy Farm and the Signal Mountain Historic District.

National Park Service sites within about an hour:

  • Chickamauga and Chattanooga National Military Park2 miles
  • Russell Cave National Monument29 miles
  • Little River Canyon National Preserve47 miles

Read about Signal Mountain's history on Wikipedia.

Know Signal Mountain?

Tell us what a visitor shouldn't miss, and what living there is really like. Write to Main Street at mainstreet@smalltownguide.com. The best notes from people who know the town will be added here.

Nearby

Straight-line miles.

Small towns

Smaller places

  • Fairmount, TN (unincorporated)2,110 people, 3 miles
  • Lone Oak, TN (unincorporated)1,422 people, 4 miles
  • Falling Water, TN (unincorporated)2,315 people, 6 miles
  • Ridgeside, TN441 people, 9 miles
  • Mowbray Mountain, TN (unincorporated)1,721 people, 11 miles
  • Wildwood, GA (unincorporated)368 people, 13 miles
  • Griffith Creek, TN (unincorporated)586 people, 14 miles
  • Sequatchie, TN (unincorporated)359 people, 15 miles

Sources

  1. U.S. Census Bureau, Population Estimates (Vintage 2025)
  2. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates
  3. Federal Housing Finance Agency, House Price Index for counties (all transactions)
  4. U.S. Bureau of Economic Analysis, Regional Price Parities, 2024
  5. FBI, Crime in the United States, Table 8 (offenses known to law enforcement by city)
  6. Centers for Medicare & Medicaid Services, Hospital General Information
  7. National Center for Education Statistics, Common Core of Data, 2023-24 (via the Urban Institute Education Data Portal)
  8. National Center for Education Statistics, IPEDS institution directory, 2024
  9. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020
  10. U.S. Geological Survey, 3D Elevation Program
  11. National Park Service, National Register of Historic Places listings
  12. National Park Service, park unit boundaries
  13. USDA Economic Research Service, Rural-Urban Continuum Codes, 2023
  14. U.S. Census Bureau, 2025 Gazetteer files and 2020 urban areas

Census survey figures are estimates with a margin of error; we leave out any figure whose margin is too wide to be useful. Data last gathered October 5, 2026. See something wrong? Write to mainstreet@smalltownguide.com.