Keystone Population

2011–2026

27,342

2026 projection

7.7% since 2020 (increase)

05K10K15K20K25K30K20122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Keystone. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202627,342+2060.76%
202527,136+4130.77%
202326,723+6642.55%
202226,059+6622.61%
202125,397+200.08%
202025,377-1160.46%
201925,493+8613.50%
201824,632+3961.63%
201724,236+3861.62%
201623,850+5792.49%

Showing 10 of 15 years.

Keystone Demographics

46.9median age

Median age

Female46.1 yrs
Male47.5 yrs

Adults

19,335
4,511 seniors · 23%14,824 other adults

Sex

Female 49.8% · 12,874Male 50.2% · 12,984

Population by age

MaleFemale85+ years, male: 13585+ years, female: 17980–84 years, male: 29880–84 years, female: 25075–79 years, male: 42675–79 years, female: 24470–74 years, male: 67970–74 years, female: 72365–69 years, male: 71265–69 years, female: 86560–64 years, male: 1,08860–64 years, female: 1,02955–59 years, male: 1,18055–59 years, female: 1,15450–54 years, male: 1,44650–54 years, female: 1,08445–49 years, male: 97345–49 years, female: 1,25840–44 years, male: 90640–44 years, female: 83635–39 years, male: 52135–39 years, female: 58730–34 years, male: 50530–34 years, female: 51725–29 years, male: 21725–29 years, female: 38320–24 years, male: 29520–24 years, female: 32215–19 years, male: 1,20115–19 years, female: 96510–14 years, male: 1,00110–14 years, female: 1,1205–9 years, male: 6775–9 years, female: 6700–4 years, male: 7240–4 years, female: 68885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 259 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Keystone Income

$161,056median household income

Median household income

$161,056

Half of households earn more, half earn less

Median earnings

$95,027

Typical yearly pay for a worker 25 or older.

Poverty rate

3.9%

About 1 in 26 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Keystone Marital Status

70% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married70%70%69%
Never married20%21%19%
Divorced6%7%6%
Widowed3%1%5%
Separated<1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year