Platte County Population

1840–2026

115.77K

2026 projection

8% since 2020 (increase)

020K40K60K80K100K120K1840186018801900192019401960198020002020

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 Platte County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026115,773+1,3731.20%
2025114,400+1,3731.21%
2024113,027+1,1191.00%
2023111,908+1,3411.21%
2022110,567+1,8001.65%
2021108,767+1,5801.47%
2020107,187+2,4612.35%
2019104,726+1,7731.72%
2018102,953+1,6971.68%
2017101,256+2,4852.52%

Showing 10 of 33 years.

Platte County Demographics

39.1median age

Median age

Female39.7 yrs
Male38.4 yrs

Adults

84,888
17,756 seniors (65+) · 21% of adults67,132 other adults

Sex

Female 50.6% · 55,801Male 49.4% · 54,570

Population by age

MaleFemale85+ years, male: 67885+ years, female: 83680–84 years, male: 90480–84 years, female: 1,21275–79 years, male: 1,39975–79 years, female: 1,86370–74 years, male: 2,44870–74 years, female: 2,65365–69 years, male: 2,71165–69 years, female: 3,05260–64 years, male: 3,20260–64 years, female: 3,45355–59 years, male: 3,63855–59 years, female: 3,50150–54 years, male: 3,65050–54 years, female: 3,67445–49 years, male: 3,54345–49 years, female: 3,48540–44 years, male: 4,06840–44 years, female: 3,89835–39 years, male: 3,84135–39 years, female: 3,98930–34 years, male: 3,80830–34 years, female: 3,71625–29 years, male: 3,45325–29 years, female: 3,50720–24 years, male: 3,17220–24 years, female: 3,26215–19 years, male: 3,52015–19 years, female: 3,35110–14 years, male: 4,13210–14 years, female: 3,9415–9 years, male: 3,2145–9 years, female: 3,3060–4 years, male: 3,1890–4 years, female: 3,10285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K

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 1,104 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

Platte County Income

$96,227median household income

Median household income

$96,227

Half of households earn more, half earn less

Median earnings

$59,701

Typical yearly pay for a worker 25 or older.

Poverty rate

7%

About 1 in 14 residents

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

Platte County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%56%54%
Never married28%31%25%
Divorced11%9%13%
Widowed5%2%7%
Separated1%1%1%

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

Sources

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

Population

American Community Survey, 2024 5-year