Census-designated place · Tennessee
Shackle Island, Tennessee
Shackle Island, census-designated place, in Sumner County, Tennessee. Shackle Island had 3,331 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 4,404 (±957). GEOID 4767230.
Residents, 2020 Census
3,331
Census count or controlled total
ACS 2020-2024 estimate: 4,404 ±957
Median household income
$130,125
±$42,819 (90% margin)
Tennessee: $69,595
Median home value
$540,400
±$100,947 (90% margin)
Tennessee: $286,700
Median gross rent
not published
Tennessee: $1,189
Where is Shackle Island and what county is it in?
Shackle Island is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Sumner County, Tennessee. It covers 5.5 square miles of land, 601 residents per square mile in 2020.
Shackle Island is in the Nashville-Davidson--Murfreesboro--Franklin, TN metropolitan statistical area, which takes in 14 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Shackle Island, and is it growing?
The 2020 Census counted 3,331 residents in Shackle Island, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 4,404 (±957).
The Census Bureau publishes yearly population estimates for incorporated places only; Shackle Island is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Shackle Island | Sumner County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 4,404 ±957 | 204,424 | +1,292 |
| Households | 1,502 ±307 | 78,582 | +460 |
| Average household size | 2.93 ±0.38 | 2.58 | no clear change |
| Housing units | 1,502 ±307 | 83,236 | +430 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Shackle Island?
The median resident of Shackle Island is 46.1 years old; 24.5% are under 18 and 13.0% are 65 or older. The largest group is non-Hispanic white residents at 86.8%, then non-Hispanic Black residents at 7.4%.
| Measure | Shackle Island | Sumner County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.1 ±4.6 | 39.8 | no clear change |
| Under 18 years | 24.5% ±6.5 pts | 23.1% | – |
| 65 years and over | 13.0% ±4.3 pts | 16.6% | – |
| Male | 50.6% ±4.0 pts | 49.1% | – |
| Hispanic or Latino (any race) | 4.2% ±3.0 pts | 7.2% | – |
| White alone, not Hispanic | 86.8% ±8.0 pts | 78.6% | no clear change |
| Black or African American alone, not Hispanic | 7.4% ±7.1 pts | 8.4% | – |
| Asian alone, not Hispanic | 0.0% ±1.0 pts | 1.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.4 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.5% ±0.7 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.8% ±1.3 pts | 0.6% | – |
| Born outside the United States | 1.5% ±1.1 pts | 4.0% | – |
| Speak a language other than English at home (age 5+) | 4.6% ±3.2 pts | 7.1% | – |
| Civilian veterans (age 18+) | 3.4% ±2.0 pts | 7.1% | – |
| With a disability | 13.0% ±5.6 pts | 11.7% | – |
| No health insurance coverage | 7.5% ±6.5 pts | 7.5% | – |
| High school graduate or higher (age 25+) | 95.8% ±3.9 pts | 92.3% | – |
| Bachelor's degree or higher (age 25+) | 34.8% ±8.1 pts | 33.6% | no clear change |
| Graduate or professional degree (age 25+) | 13.2% ±5.3 pts | 11.7% | – |
| Lived in the same house a year earlier | 93.8% ±3.8 pts | 86.9% | – |
| Moved from another state in the past year | 3.7% ±3.0 pts | 3.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Shackle Island earn?
Half of Shackle Island's 1,502 households earn less than $130,125 a year (±$42,819), against $90,301 in Sumner County and $69,595 in Tennessee. In 2015-2019 it was $138,892 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Shackle Island | Sumner County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $130,125 ±$42,819 | $90,301 | no clear change |
| Mean household income | $175,636 ±$33,178 | $113,861 | – |
| Per capita income | $60,305 ±$14,075 | $44,761 | no clear change |
| People below the poverty line | 6.7% ±6.5 pts | 8.8% | – |
| Children under 18 below the poverty line | 10.0% ±9.8 pts | 12.4% | – |
| Households receiving SNAP | 4.5% ±6.6 pts | 6.1% | – |
| Households with a computer | 98.3% ±1.9 pts | 97.1% | – |
| Households with a broadband subscription | 85.8% ±12.0 pts | 92.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Shackle Island?
Owners occupy 93.0% of Shackle Island's occupied homes and renters 7.0%. The median owner-occupied home is valued at $540,400 by its owner (±$100,947).
| Measure | Shackle Island | Sumner County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $540,400 ±$100,947 | $393,100 | +$154,701 |
| Renters paying 35% or more of income on rent | 26.8% ±54.5 pts | 39.1% | – |
| Median monthly owner costs, with a mortgage | $2,176 ±$264 | $1,831 | – |
| Owner-occupied homes | 93.0% ±7.5 pts | 72.0% | no clear change |
| Renter-occupied homes | 7.0% ±7.5 pts | 28.0% | – |
| Housing units | 1,502 ±307 | 83,236 | +430 |
| Homeowner vacancy rate | 0.0% ±3.2 pts | 1.3% | – |
| Rental vacancy rate | 0.0% ±33.3 pts | 5.6% | – |
| Single-family detached homes | 99.7% ±0.5 pts | 73.0% | – |
| Mobile homes | 0.3% ±0.5 pts | 5.1% | – |
| Built 2020 or later | 3.7% ±2.7 pts | 4.2% | – |
| Built 2010 to 2019 | 4.8% ±3.8 pts | 20.8% | – |
| Built 1939 or earlier | 5.0% ±6.8 pts | 2.4% | – |
| Households with no vehicle | 0.0% ±2.9 pts | 3.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Shackle Island work and get to work?
71.7% of Shackle Island's workers drive alone and 23.8% work from home. The average trip to work takes 41.0 minutes.
| Measure | Shackle Island | Sumner County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 73.0% ±5.6 pts | 67.4% | – |
| Unemployment rate | 7.2% ±5.2 pts | 3.6% | – |
| Drove alone to work | 71.7% ±9.4 pts | 74.0% | – |
| Carpooled | 4.2% ±4.4 pts | 7.7% | – |
| Public transportation | 0.0% ±1.9 pts | 0.1% | – |
| Walked | 0.0% ±1.9 pts | 0.5% | – |
| Worked from home | 23.8% ±8.6 pts | 16.2% | +17.2 pts |
| Mean travel time to work | 41.0 min ±9.4 | 29.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Shackle Island?
No census tract lies mostly in Shackle Island; 4 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 210.06Sumner County | 4,697 | $143,194 |
| Tract 210.05Sumner County | 5,419 | $101,586 |
| Tract 210.07Sumner County | 5,461 | $156,012 |
| Tract 210.02Sumner County | 8,210 | $108,065 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Shackle Island) · Census block assignment files
How does Shackle Island compare with other places in Tennessee?
Shackle Island ranks 15th of 287 places in Tennessee with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 128th | 289 |
| Residents per square mile | 157th | 289 |
| Median household income | 15th | 287 |
| Per capita income | 20th | 289 |
| Median home value | 14th | 285 |
| Bachelor's degree or higher | 54th | 276 |
| Median age | 53rd | 289 |
| Owner-occupied share | 13th | 289 |
| Work from home | 12th | 167 |
| Travel time to work | 6th | 288 |
Shackle Island's figures with every place in Tennessee (CSV)
Every place in Tennessee, sortable · Compare Shackle Island with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Shackle Island?
27 of the 56 figures for Shackle Island on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Shackle Island are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.