Platte County, Missouri: Realigning Affluent Suburb county. In 2024, voted R+3%. Democratic peak: D+63 in 1932.
Key facts
- 2024 presidential margin
- R+3MIT Election Lab
- Political typology
- Realigning Affluent SuburbAkashic typology
- Population
- 110,3712024 5-year
- Median household income
- $96,2272024 5-year
- White (non-Hispanic)
- 78.6%2024 5-year
- Black
- 7.7%2024 5-year
- Hispanic / Latino
- 7.2%2024 5-year
- Peak Democratic margin
- D+63 in 1932MIT Election Lab
- Peak Republican margin
- R+35 in 1972MIT Election Lab
- Most similar
- Kaufman County, TX · similarity 0.93
2024 results by precinct
2024 precinct map of Platte CountyPrecinct-level 2024 presidential results for Platte County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +47.7% |
| 1896 | +50.3% |
| 1900 | +50.4% |
| 1904 | +45.0% |
| 1908 | +47.7% |
| 1912 | +58.8% |
| 1916 | +52.4% |
| 1920 | +43.2% |
| 1924 | +29.2% |
| 1928 | +15.9% |
| 1932 | +63.2% |
| 1936 | +46.3% |
| 1940 | +29.1% |
| 1944 | +22.9% |
| 1948 | +45.1% |
| 1952 | +15.2% |
| 1956 | +18.9% |
| 1960 | +10.2% |
| 1964 | +33.5% |
| 1968 | −1.5% |
| 1972 | −35.4% |
| 1976 | +3.2% |
| 1980 | −14.7% |
| 1984 | −25.3% |
| 1988 | −2.7% |
| 1992 | +5.2% |
| 1996 | −2.1% |
| 2000 | −7.2% |
| 2004 | −11.7% |
| 2008 | −6.4% |
| 2012 | −14.1% |
| 2016 | −11.8% |
| 2020 | −3.0% |
| 2024 | −3.1% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 27,566 | 29,381 | 58,189 | ||
| R | 27,179 | 28,917 | 57,270 | ||
| R | 20,057 | 25,933 | 49,608 | ||
| R | 19,175 | 25,618 | 45,710 | ||
| R | 21,495 | 24,460 | 46,516 | ||
| R | 18,412 | 23,302 | 41,970 | ||
| R | 15,325 | 17,785 | 34,054 | ||
| R | 12,705 | 13,332 | 29,389 | ||
| D | 10,920 | 9,380 | 29,478 | ||
| R | 11,225 | 11,838 | 23,129 | ||
| R | 7,668 | 12,859 | 20,527 | ||
| R | 7,342 | 10,092 | 18,756 | ||
| D | 8,651 | 8,103 | 17,054 | ||
| R | 4,183 | 8,764 | 12,947 | ||
| R | 4,665 | 4,836 | 11,316 | ||
| D | 6,143 | 3,059 | 9,202 | ||
| D | 5,860 | 4,771 | 10,631 | ||
| D | 5,271 | 3,596 | 8,867 | ||
| D | 4,604 | 3,390 | 8,003 | ||
| D | 4,354 | 1,644 | 6,014 | ||
| D | 3,741 | 2,344 | 6,093 | ||
| D | 4,635 | 2,545 | 7,193 | ||
| D | 4,884 | 1,787 | 6,691 | ||
| D | 5,179 | 1,160 | 6,358 | ||
| D | 3,344 | 2,423 | 5,777 | ||
| D | 3,674 | 1,999 | 5,744 | ||
| D | 4,361 | 1,724 | 6,102 | ||
| D | 2,974 | 921 | 3,915 | ||
| D | 2,535 | 510 | 3,445 | ||
| D | 2,795 | 982 | 3,801 | ||
| D | 2,537 | 953 | 3,522 | ||
| D | 3,052 | 997 | 4,077 | ||
| D | 3,191 | 1,044 | 4,266 | ||
| D | 2,664 | 885 | 3,732 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
23.4%
English
15.1%
Irish
13.1%
American
4.9%
Italian
3.1%
Polish
2.4%
Scottish
2.3%
African American
6.2%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 39.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$96,227
Platte County ranks in the top 5% of US counties.
Platte County$96,227
Missouri$70,702
United States$80,734
Platte County ranks in the top 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
7.0%
Child poverty is below the national average.
Children under 189.0%
Working age (18–64)5.9%
Seniors (65+)12.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
91.8%
speak English only
Spanish3.4%
Other Indo-European1.8%
Asian & Pacific Islander1.6%
Other languages1.5%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 71.8% of residents not counted as adherents by any reporting body.
Platte County sits along the Missouri River just north of Kansas City, and its suburban growth has tightened presidential margins from double-digit Republican advantages a decade ago to single digits in 2024.
Once reliably Republican — a margin of thirty-five points in 1972 at its widest — Platte County has trended Democratic. The 2024 margin was three points.
A median household income of $96,227 — among the higher at this geographic scale — and a population of 110,371 describe the county. The county's voting pattern over the last decade is most similar to that of Kaufman County and Scott County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Platte County, Missouri. Akashic. https://akashic.app/county/29165/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Platte County, Missouri vote in 2024?
In 2024, Platte County, Missouri voted Republican by 3.1 points (R+3), carried by the Republican candidate. Out of 58,189 votes cast, 27,566 went Democratic and 29,381 went Republican.
What is Platte County, Missouri's political typology?
Akashic places Platte County, Missouri in the "Realigning Affluent Suburb" typology — College-educated, affluent suburbs — the one bloc moving toward the Democratic Party. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 21 times, Republican 13 times, and other 0 times.
When did Platte County, Missouri last vote Democratic?
The most recent presidential election in which Platte County, Missouri voted Democratic was 1992.
How many people live in Platte County, Missouri?
Platte County, Missouri has a population of 110,371 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Platte County, Missouri?
Median household income in Platte County, Missouri is $96,227 — above the national median of $80,734. The Missouri state median is $70,702.
What is the political history of Platte County, Missouri?
Akashic tracks 38 presidential elections in Platte County, Missouri from 1876 to 2024. Of those, 21 went Democratic and 13 went Republican. The county's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.