City · Alabama
Millbrook, Alabama
Millbrook, city, mostly in Elmore County (97.6% of its 2020 residents), with a part in Autauga County, Alabama. Millbrook had 17,623 residents on July 1, 2025 by the Census Bureau's estimate, up 6.6% since 2020; the 2020 Census counted 16,564 and the ACS 2020-2024 5-year estimates put it at 17,189 (±313). GEOID 0148712.
Residents, July 2025 estimate
17,623
Census Bureau estimate (no margin published)
2020 Census count: 16,564 · ACS 2020-2024: 17,189 ±313
Median household income
$70,313
±$10,189 (90% margin)
Alabama: $63,999
Median home value
$207,100
±$14,270 (90% margin)
Alabama: $209,900
Median gross rent
$1,111
±$69 (90% margin)
Alabama: $1,007
Where is Millbrook and what county is it in?
Millbrook is a city mostly in Elmore County (97.6% of its 2020 residents), with a part in Autauga County, Alabama. It covers 14.4 square miles of land, 1,150 residents per square mile in 2020.
Millbrook is in the Montgomery, AL metropolitan statistical area, which takes in 4 counties (Census Bureau delineation, July 2023).
| County | 2020 residents | Share |
|---|---|---|
| Elmore County | 16,161 | 97.6% |
| Autauga County | 403 | 2.4% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Millbrook, and is it growing?
The Census Bureau estimates that 17,623 people lived in Millbrook on July 1, 2025, up 6.6% since 2020, faster than Alabama (+3.3%). The 2020 Census counted 16,564 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 17,189 (±313).
| Measure | Millbrook | Elmore County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 17,189±313 | 89,526 | +1,544 |
| Households | 6,772±399 | 32,856 | +711 |
| Average household size | 2.53±0.14 | 2.60 | no clear change |
| Housing units | 7,245±431 | 37,323 | +798 |
Millbrook's population since 2000
From 10,386 in 2000 to 17,623 in 2025: up 69.7%. The 2000, 2010 and 2020 figures are census counts, each for Millbrook as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
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 Millbrook?
The median resident of Millbrook is 38.5 years old; 22.0% are under 18 and 15.8% are 65 or older. The largest group is non-Hispanic white residents at 64.4%, then non-Hispanic Black residents at 26.4%. 2.8% of residents were born outside the United States.
| Measure | Millbrook | Elmore County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.5±2.9 | 39.5 | no clear change |
| Under 18 years | 22.0%±2.6 pts | 21.6% | – |
| 65 years and over | 15.8%±2.2 pts | 16.5% | – |
| Male | 45.5%±2.6 pts | 48.7% | – |
| Hispanic or Latino (any race) | 3.1%±1.4 pts | 3.4% | no clear change |
| White alone, not Hispanic | 64.4%±4.7 pts | 71.8% | no clear change |
| Black or African American alone, not Hispanic | 26.4%±4.6 pts | 21.1% | no clear change |
| Asian alone, not Hispanic | 1.4%±1.2 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.6%±2.6 pts | 3.0% | – |
| Some other race alone, not Hispanic | 0.1%±0.2 pts | 0.1% | – |
| Born outside the United States | 2.8%±1.1 pts | 2.0% | no clear change |
| Speak a language other than English at home (age 5+) | 3.1%±1.3 pts | 2.7% | – |
| Civilian veterans (age 18+) | 8.6%±2.0 pts | 9.4% | – |
| With a disability | 16.4%±2.5 pts | 15.2% | – |
| No health insurance coverage | 5.9%±1.8 pts | 7.7% | no clear change |
| High school graduate or higher (age 25+) | 90.8%±2.4 pts | 89.7% | – |
| Bachelor's degree or higher (age 25+) | 30.9%±4.1 pts | 25.4% | no clear change |
| Graduate or professional degree (age 25+) | 11.5%±2.8 pts | 8.9% | – |
| Lived in the same house a year earlier | 91.4%±2.7 pts | 91.3% | – |
| Moved from another state in the past year | 1.0%±0.8 pts | 0.9% | – |
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 Millbrook earn?
Half of Millbrook's 6,772 households earn less than $70,313 a year (±$10,189), against $78,243 in Elmore County and $63,999 in Alabama. In 2015-2019 it was $77,336 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.8% of residents live below the poverty line.
| Measure | Millbrook | Elmore County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $70,313±$10,189 | $78,243 | no clear change |
| Mean household income | $89,253±$7,539 | $97,745 | – |
| Per capita income | $36,117±$3,145 | $37,457 | no clear change |
| People below the poverty line | 7.8%±2.7 pts | 10.3% | no clear change |
| Children under 18 below the poverty line | 11.0%±5.6 pts | 14.8% | no clear change |
| Households receiving SNAP | 7.9%±2.9 pts | 10.5% | – |
| Households with a computer | 95.2%±2.3 pts | 96.4% | – |
| Households with a broadband subscription | 92.7%±2.5 pts | 91.7% | – |
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 Millbrook?
Owners occupy 75.0% of Millbrook's occupied homes and renters 25.0%. The median owner-occupied home is valued at $207,100 by its owner (±$14,270). The median renter pays $1,111 a month including utilities, and 31.2% of renters pay 35% or more of their income on rent.
| Measure | Millbrook | Elmore County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $207,100±$14,270 | $223,900 | +$17,204 |
| Median gross rent | $1,111±$69 | $1,071 | no clear change |
| Renters paying 35% or more of income on rent | 31.2%±11.0 pts | 38.8% | −15.4 pts |
| Median monthly owner costs, with a mortgage | $1,375±$89 | $1,432 | – |
| Owner-occupied homes | 75.0%±4.6 pts | 77.0% | no clear change |
| Renter-occupied homes | 25.0%±4.6 pts | 23.0% | – |
| Housing units | 7,245±431 | 37,323 | +798 |
| Homeowner vacancy rate | 0.0%±0.8 pts | 0.3% | – |
| Rental vacancy rate | 7.2%±6.4 pts | 7.0% | – |
| Single-family detached homes | 78.9%±3.7 pts | 75.7% | – |
| Mobile homes | 2.7%±1.3 pts | 15.4% | – |
| Built 2020 or later | 4.7%±2.0 pts | 3.1% | – |
| Built 2010 to 2019 | 13.5%±3.4 pts | 16.9% | – |
| Built 1939 or earlier | 2.0%±1.5 pts | 2.2% | – |
| Households with no vehicle | 3.4%±1.7 pts | 3.4% | – |
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 many new homes is Millbrook building?
Builders took permits for 78 new housing units in Millbrook in 2025 (78 in single-family houses), 4.4 per 1,000 residents against 3.7 across Alabama.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Millbrook work and get to work?
83.7% of Millbrook's workers drive alone and 6.7% work from home. The average trip to work takes 24.8 minutes. The unemployment rate in 2020-2024 averaged 6.6%.
| Measure | Millbrook | Elmore County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.6%±3.8 pts | 59.8% | – |
| Unemployment rate | 6.6%±2.7 pts | 4.6% | +3.6 pts |
| Drove alone to work | 83.7%±3.4 pts | 84.0% | – |
| Carpooled | 8.7%±3.0 pts | 6.9% | – |
| Public transportation | 0.1%±0.2 pts | 0.1% | – |
| Walked | 0.6%±0.7 pts | 0.9% | – |
| Worked from home | 6.7%±2.2 pts | 7.3% | +4.0 pts |
| Mean travel time to work | 24.8 min±2.0 | 27.9 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 Millbrook?
2 census tracts lie mostly in Millbrook, and 6 more reach into it (2020 census blocks). Their median household incomes run from $68,588 (Tract 310.01) to $80,559 (Tract 311).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 311Elmore County | 4,447 | $80,559 |
| Tract 310.01Elmore County | 4,316 | $68,588 |
| Tract 309.01Elmore County | 7,227 | $102,067 |
| Tract 310.02Elmore County | 3,563 | $55,109 |
| Tract 313Elmore County | 4,478 | $68,472 |
| Tract 208.05Autauga County | 3,115 | $108,064 |
| Tract 309.02Elmore County | 4,924 | $58,920 |
| Tract 312Elmore County | 1,570 | $52,232 |
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 Millbrook) · Census block assignment files
How does Millbrook compare with other places in Alabama?
By the Census Bureau's July 2025 estimates, Millbrook is the 2,142nd-most populous of the 19,476 U.S. incorporated places that have one and the 39th-most populous of 463 in Alabama.
Millbrook ranks 97th of 305 places in Alabama with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 39th | 463 |
| Growth 2020-2025 (PEP) | 60th | 257 |
| Residents per square mile | 35th | 311 |
| Median household income | 97th | 305 |
| Per capita income | 85th | 311 |
| Median home value | 104th | 304 |
| Median gross rent | 62nd | 274 |
| Poverty rate | 228th | 258 |
| Bachelor's degree or higher | 68th | 295 |
| Median age | 171st | 309 |
| Owner-occupied share | 118th | 310 |
| Work from home | 92nd | 138 |
| Travel time to work | 183rd | 310 |
Millbrook's figures with every place in Alabama (CSV)
Every place in Alabama, sortable · Compare Millbrook 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 Millbrook?
10 of the 57 figures for Millbrook 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 Millbrook 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' public schools in Millbrook.