Population 13,755 · Census ACS 2020–24
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Population and households in Signal Mountain
Household size in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.62 | 2.48 | 2.53 | 2.68 |
| 2010–14 | 2.63 | 2.53 | 2.57 | 2.73 |
| 2015–19 | 2.69 | 2.50 | 2.57 | 2.71 |
| 2020–24 | 2.65 | 2.50 | 2.53 | 2.65 |
| Change | +0.03 | +0.02 | +0.00 | −0.03 |
Households in Signal Mountain average 2.65 people, the same as the country as a whole. The typical household here is bigger than in the Chattanooga area as a whole, where it has 2.50 people. Household size has crept up from 2.62 in 2006–10, even as the national average fell.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 42.5 | 39.6 | 38.3 | 37.7 |
| 2010–14 | 44.0 | 40.5 | 39.2 | 38.6 |
| 2015–19 | 43.6 | 41.3 | 39.9 | 39.6 |
| 2020–24 | 46.4 | 41.2 | 39.9 | 40.1 |
| Change | +3.9 | +1.6 | +1.6 | +2.3 |
With a median age of 46.4, Signal Mountain is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 42.5 in 2006–10, mirroring the country. Residents skew youngest in the north and oldest in the southwest.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.4% | 11.2% | 12.2% | 12.3% |
| 2010–14 | 8.3% | 11.2% | 12.0% | 12.3% |
| 2015–19 | 8.6% | 9.8% | 11.6% | 11.6% |
| 2020–24 | 5.2% | 11.1% | 11.8% | 11.6% |
| Change | +0.7 pts | −0.1 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Signal Mountain: 5.2% of households, against 11.6% nationally. The single-parent share has edged up 0.7 points since 2006–10, even as the national share fell. Of the 202 Tennessee cities with 5,000+ people, only 12 have a lower share of single-parent households.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Signal Mountain
Renters in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.6% | 30.9% | 30.4% | 33.3% |
| 2010–14 | 14.6% | 32.2% | 32.9% | 35.6% |
| 2015–19 | 15.9% | 32.9% | 33.7% | 36.0% |
| 2020–24 | 15.8% | 31.8% | 33.1% | 34.8% |
| Change | −1.8 pts | +1.0 pts | +2.6 pts | +1.5 pts |
Only 15.8% of households in Signal Mountain rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. More than four in ten owners (45.1%) have paid off their mortgages, above the national share of 39.8%. The renter share has fallen 1.8 points since 2006–10, even as the national share rose.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.3% | 11.3% | 11.5% | 11.4% |
| 2010–14 | 8.4% | 11.8% | 11.8% | 11.4% |
| 2015–19 | 7.6% | 11.6% | 11.8% | 11.1% |
| 2020–24 | 5.2% | 9.9% | 10.1% | 9.6% |
| Change | −5.1 pts | −1.4 pts | −1.4 pts | −1.8 pts |
Only 5.2% of homes in Signal Mountain are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 5.1 points from 2006–10, mirroring the country. Signal Mountain has a lower vacancy rate than the great majority of Tennessee cities.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 1976 | 1977 | 1981 | 1974 |
| 2010–14 | 1976 | 1978 | 1982 | 1975 |
| 2015–19 | 1979 | 1980 | 1983 | 1977 |
| 2020–24 | 1981 | 1983 | 1986 | 1980 |
| Change | +5 | +6 | +6 | +6 |
The typical home in Signal Mountain was built around 1981, about the same vintage as the country's housing overall (1980). The median year built has moved up from 1976 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, the oldest in the southeast.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | $849 | $731 | $761 | $965 |
| 2010–14 | $1,155 | $803 | $837 | $1,040 |
| 2015–19 | $1,502 | $876 | $961 | $1,213 |
| 2020–24 | $1,799 | $1,184 | $1,286 | $1,571 |
| Change | +$950 | +$454 | +$526 | +$606 |
Rent in Signal Mountain runs $1,799 a month at the median, utilities included, above the U.S. median of $1,571. Rent has climbed $950 a month since 2006–10, up 112%, faster than rents rose nationally. The typical renter here spends 25.5% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the southwest and lowest in the northwest.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Signal Mountain
Bachelor's degrees in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 50.2% | 22.9% | 23.9% | 28.4% |
| 2010–14 | 55.3% | 24.3% | 25.3% | 29.6% |
| 2015–19 | 62.3% | 27.2% | 27.9% | 32.1% |
| 2020–24 | 60.7% | 31.6% | 31.4% | 35.6% |
| Change | +10.5 pts | +8.7 pts | +7.5 pts | +7.2 pts |
Signal Mountain is highly educated: about six in ten adults 25 and older (60.7%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree has risen 10.5 points since 2006–10, in line with the national trend. Only eight of the 202 Tennessee cities with 5,000+ people have a higher share of college graduates.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 90.6% | 82.5% | 83.3% | 84.9% |
| 2010–14 | 93.5% | 84.9% | 85.4% | 86.1% |
| 2015–19 | 96.8% | 87.4% | 87.6% | 87.7% |
| 2020–24 | 95.7% | 89.5% | 89.9% | 89.3% |
| Change | +5.1 pts | +7.0 pts | +6.6 pts | +4.3 pts |
High school completion is high in Signal Mountain: 95.7% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 5.1 points, in line with the national trend. Of the 202 Tennessee cities with 5,000+ people, only 17 have a higher share of high school graduates.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Signal Mountain
| Period | Signal Mountain | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.4% | 9.1% | 8.6% | 8.1% |
| 2010–14 | 3.9% | 9.3% | 9.6% | 9.4% |
| 2015–19 | 2.8% | 4.9% | 5.4% | 5.6% |
| 2020–24 | 2.8% | 4.7% | 4.8% | 5.4% |
| Change | +0.4 pts | −4.4 pts | −3.8 pts | −2.7 pts |
Unemployment in Signal Mountain has been low: just 2.8% of the labor force was out of work and looking, well below the national rate of 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Signal Mountain compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Signal Mountain | 2.65 | 46.4 | 5.2% | 15.8% | 5.2% | 1981 | $1,799 | 60.7% | 95.7% | 2.8% |
| Walden | 2.62 | 43.6 | 6.1% | 14.9% | 5.0% | 1982 | $1,597 | 59.7% | 95.9% | 3.6% |
| Timberlinks | 2.87 | 43.6 | 5.5% | 18.9% | 14.6% | 1991 | $1,240 | 46.0% | 80.3% | 3.7% |
| Red Bank | 2.07 | 36.8 | 10.9% | 44.0% | 7.8% | 1968 | $1,327 | 43.1% | 94.2% | 3.5% |
| Falling Water | 2.76 | 40.5 | 10.7% | 15.2% | 3.3% | 1994 | $1,471 | 38.3% | 84.2% | 7.8% |
| Fairmount | 2.98 | 43.6 | 2.1% | 3.4% | 6.8% | 2001 | $1,563 | 45.8% | 100.0% | 0.0% |
| Lone Oak | 2.75 | 49.1 | 7.1% | 12.4% | 17.5% | 1992 | $693 | 20.0% | 84.4% | 6.3% |
| Hixson | 2.42 | 44.4 | 12.7% | 27.8% | 6.7% | 1985 | $1,383 | 37.4% | 93.6% | 4.4% |
| Sulphur Springs | 2.60 | 49.3 | 5.5% | 15.3% | 25.3% | 1982 | $774 | 16.7% | 68.5% | 8.5% |
| Powells Crossroads | 2.24 | 48.5 | 9.9% | 18.9% | 7.2% | 1983 | $879 | 14.6% | 84.9% | 5.6% |
| Middle Valley | 2.59 | 44.0 | 10.5% | 15.2% | 5.5% | 1985 | $1,208 | 30.8% | 89.3% | 4.2% |
All figures 2020–24.
Cities with similar populations: Hasbrouck Heights, NJ · Stony Point, NY · Stella Rincon, PR · Starke, FL · St. Simons, GA · St. Peter, MN · St. Martinville, LA · Solana Beach, CA · Skiatook, OK · Storrs, CT
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Signal Mountain. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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