Population: Williamson County
Latest value, 2025
67,225persons
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.
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.
Evolution
Value
| Period | Value |
|---|---|
| 2025 | 67,225 |
| 2024 | 67,074 |
| 2023 | 66,749 |
| 2022 | 66,544 |
| 2021 | 66,910 |
| 2020 | 67,127 |
Comparison with related places
| Place | 2025 |
|---|---|
| Williamson County | 67,225 |
| Illinois | 12,719,141 |
| United States | 341,784,857 |
| Adams County | 64,267 |
| Vermilion County | 71,259 |
| Whiteside County | 54,121 |
| Grundy County | 54,052 |
| Boone County | 53,568 |
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.Get this figure from your agent
Call get_value through the MCP server or the REST API.
get_value {"indicator":"population","place":"us-county-17199"}
GET https://invokely.ai/api/v1/value?indicator=population&place=us-county-17199