Data / Population / Delta County

Population in Delta County

Population in Delta County was 36,582 in 2025, according to the U.S. Census Bureau. That is down 0.4% from 2024. That is the 43rd highest of 83 counties in 2025.

2025, persons36,582
Change on 2024-0.4%
Rank43rd of 83Counties in Michigan ranked
Series high36,8772020
Series low36,5822025

Population in Delta County, 2020 to 2025

CSVChart (SVG)

36.5K36.6K36.7K36.8K36.9K2020202120222023202420252020: 36,877 persons2021: 36,839 persons2022: 36,814 persons2023: 36,820 persons2024: 36,713 persons2025: 36,582 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202536,582
202436,713
202336,820
202236,814
202136,839
202036,877

Compared with Michigan and United States

Place2025
Delta County36,582
Michigan10,127,884
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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What is the latest population in Delta County? Cite the source.
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Questions

What is the population in Delta County?

Population in Delta County was 36,582 in 2025, according to the U.S. Census Bureau. That is down 0.4% from 2024. That is the 43rd highest of 83 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Delta County?

36,877 in 2020, the highest value since 2020 in this series.

More statistics for Delta County

All statistics for Delta County