Williamson
Source:
Illinois
Williamson is a smaller county in Illinois with 11 ZIP codes, 62,312 people, and one of the lowest household incomes among US counties among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Williamson, IL sits among US counties with one of the lowest household incomes among US counties, on a smaller county population base, across a compact ZIP cluster.
- 23rd pct
- household income vs 3,210 US counties
- 62,312
- combined ZIP population
- 11
- USPS ZIP codes covered
- $56,069
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Williamson lands in the national county income distribution as one of the lowest household incomes among US counties on smaller county footing (FIPS 17199, 11 ZIPs, combined population 62,312). Sort the ZIP table by population before treating the county mean as uniform.
Lower household-income footing across 11 ZIPs (combined population 62,312). Cost-of-living reads should start from the densest ZIP rather than the county mean - sparse codes can dominate land area while a small urban ZIP carries most residents.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
11
Total ZIPs
62,312
Total Population
ZIP Codes in Williamson
Side-by-side: Compare 62959 vs 62948 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 62959 | Marion | 26,948 | 77 |
| 62948 | Herrin | 12,865 | 265 |
| 62918 | Carterville | 9,793 | 105 |
| 62951 | Johnston City | 5,352 | 84 |
| 62922 | Creal Springs | 3,119 | 19 |
| 62974 | Pittsburg | 1,401 | 20 |
| 62933 | Energy | 1,230 | 330 |
| 62949 | Hurst | 810 | 202 |
| 62921 | Colp | 375 | 190 |
| 62915 | Cambria | 321 | 1,028 |
| 62841 | Freeman Spur | 98 | 386 |
Frequently Asked Questions
What is the population of Williamson?
Williamson has a total population of 62,312 across 11 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Williamson?
Williamson includes 11 ZIP codes: 62959, 62948, 62918, 62951, 62922, 62974, 62933, 62949, 62921, 62915, and more.