Platte County Demographics
A map of Platte County's Population by Race
Platte County, Wyoming has an estimated population of 8,612, a less than 1% change from the 8,605 recorded in the 2020 Census. The population is 85.0% White, 8.8% Hispanic, 4.9% Multiracial, 0.9% Native American/Other, 0.3% Black, and 0.0% Asian. This demographic dot map shows the population of Platte County, with one dot drawn for each person counted by the Census, color-coded by race.
Platte has become more racially diverse since the 2020 Census. It is considerably less diverse than Wyoming overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Platte County, that probability was 23.9% in 2020 and 26.8% in the most recent ACS estimates.
Platte County is ranked the 18th most populous county in Wyoming, out of 23 counties. Platte County was ranked the 17th most populous county in the 2020 Census.
Platte County's White Population
7,318 residents of Platte County, or 85.0% of the population, identify as White. The share of White residents in Platte County is slightly higher than in Wyoming overall, where 81.4% of the population is White. Platte County ranks 11th statewide in terms of White residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's White population has declined by an estimated 2.0%. White residents' share of Platte County's population has decreased from 86.8% to 85.0%.
Platte County is more White than neighboring Goshen County (84.5% White), Laramie County (74.9% White), and Albany County (79.9% White). Platte County is less White than neighboring Converse County (87.2% White), and Niobrara County (87% White).
Platte County's Black Population
29 residents of Platte County, or 0.3% of the population, identify as Black. The share of Black residents in Platte County is comparable to the share in Wyoming overall, where 0.8% of the population is Black. Platte County ranks 15th statewide in terms of Black residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's Black population has grown by an estimated 52.6%. Black residents' share of Platte County's population has remained roughly unchanged at 0.3%.
Platte County is more Black than neighboring Goshen County (0.2% Black). Platte County is less Black than neighboring Laramie County (2.1% Black), Albany County (1% Black), Converse County (0.6% Black), and Niobrara County (3.5% Black).
Platte County's Asian Population
0 residents of Platte County, or 0.0% of the population, identify as Asian. The share of Asian residents in Platte County is comparable to the share in Wyoming overall, where 0.8% of the population is Asian. Platte County ranks 13th statewide in terms of Asian residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's Asian population has declined by an estimated 100.0%. Asian residents' share of Platte County's population has decreased from 0.5% to 0.0%.
Platte County is less Asian than neighboring Goshen County (0.6% Asian), Laramie County (1% Asian), Albany County (3.6% Asian), and Converse County (0.2% Asian).
Platte County's Hispanic Population
761 residents of Platte County, or 8.8% of the population, identify as Hispanic. The share of Hispanic residents in Platte County is comparable to the share in Wyoming overall, where 10.7% of the population is Hispanic. Platte County ranks 12th statewide in terms of Hispanic residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's Hispanic population has grown by an estimated 9.5%. Hispanic residents' share of Platte County's population has increased from 8.1% to 8.8%.
Platte County is more Hispanic than neighboring Converse County (8.2% Hispanic), and Niobrara County (5.6% Hispanic). Platte County is less Hispanic than neighboring Goshen County (10.2% Hispanic), Laramie County (15.8% Hispanic), and Albany County (10.6% Hispanic).
Platte County's Native American/Other Population
80 residents of Platte County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Platte County is comparable to the share in Wyoming overall, where 2.4% of the population is Native American/Other. Platte County ranks 13th statewide in terms of Native American/Other residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's Native American/Other population has declined by an estimated 23.1%. Native American/Other residents' share of Platte County's population has remained roughly unchanged at 0.9%.
Platte County is more Native American/Other than neighboring Albany County (0.5% Native American/Other), and Converse County (0% Native American/Other). Platte County is less Native American/Other than neighboring Goshen County (1.3% Native American/Other), Laramie County (2.1% Native American/Other), and Niobrara County (2.2% Native American/Other).
Platte County's Multiracial Population
424 residents of Platte County, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Platte County is comparable to the share in Wyoming overall, where 4% of the population is Multiracial. Platte County ranks 17th statewide in terms of Multiracial residents as a share of the population, out of 23 counties.
Since the 2020 Census, Platte County's Multiracial population has grown by an estimated 54.2%. Multiracial residents' share of Platte County's population has increased from 3.2% to 4.9%.
Platte County is more Multiracial than neighboring Goshen County (3.2% Multiracial), Laramie County (4.1% Multiracial), Albany County (4.4% Multiracial), Converse County (3.8% Multiracial), and Niobrara County (1.8% Multiracial).
Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.