St. Clair County
$2.7B in FY2025 federal spending, $10,397 per capita.
Illinois · FIPS 17163
In FY2025, St. Clair County in Illinois received $2.7B in federal spending - $10,397 per capita for a population of 257,400. This is 33.6% below the national average and 1.0% below the Illinois average. The leading federal agency by spending share is Social Security Administration. By per-capita federal spending, it ranks #6 of 102 Illinois counties.
- Total spending
- $2.7B
- Per capita
- $10,397
- vs. national avg
- -33.6%
- Fiscal year
- FY2025
The verdict
St. Clair County posts top-quartile federal per-capita spending nationally, with spending led by Social Security Administration, among several agencies.
- National per-capita rank
- Top 23%
- of 3,232 US counties
- Per-capita spending
- $10,397
- Leading agency
- Social Security Administration
- 49.7% of tracked spending
- Illinois rank
- #6 of 102
How St. Clair County Compares
Per-capita federal spending: St. Clair County vs. Illinois and the nation
Population: 257,400 (U.S. Census Bureau estimate) - the denominator behind the per-capita figures above.
Leading Federal Agencies in St. Clair County
Top awarding agencies in St. Clair County, FY2025
Among the 1,150 US counties with agency-level spending data, Social Security Administration is the most common leading agency nationally, topping 86% of agency-tracked counties.
These 3 agencies together account for $2.3B (86.4%) of St. Clair County's $2.7B in total tracked federal spending -- the remainder is spread across smaller awarding agencies not individually broken out in this dataset.
All 3 individually-tracked agencies are shown above - St. Clair County has no smaller residual awarding agencies broken out beyond this set, a compact agency footprint rather than a long tail of minor awardees.
Read the agency breakdown as a table
| Agency | Spending | Share |
|---|---|---|
| Social Security Administration | $1.1B | 49.7% |
| Department of Defense | $840.2M | 36.3% |
| Department of Veterans Affairs | $323.3M | 14% |
How St. Clair County Ranks Nationally
Per-capita federal spending vs. all US counties
All 3,232 US counties, FY2025
$10,397 Top 23% higher than 77% of 3,224 US counties
Each bar is a $1K-wide band; taller bars hold more US counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source USASpending.gov FY2025 + U.S. Census Bureau population estimates
St. Clair County Among Illinois's Largest Counties
Population vs. per-capita spending: Illinois's biggest counties
Read the chart as a table
| County | Population | Per capita | Total spending |
|---|---|---|---|
| Cook County | 5,275,541 | $7,311 | $38.6B |
| Dupage County | 932,877 | $9,346 | $8.7B |
| Lake County | 714,342 | $7,351 | $5.3B |
| Will County | 696,355 | $5,317 | $3.7B |
| Kane County | 516,522 | $6,628 | $3.4B |
| Mchenry County | 310,229 | $6,028 | $1.9B |
| Winnebago County | 285,350 | $9,345 | $2.7B |
| Madison County | 265,859 | $7,145 | $1.9B |
| St. Clair County (this county) | 257,400 | $10,397 | $2.7B |
| Champaign County | 205,865 | $8,614 | $1.8B |
| Sangamon County | 196,343 | $20,166 | $4.0B |
| Peoria County | 181,830 | $6,704 | $1.2B |
| Mclean County | 170,954 | $5,685 | $971.8M |
| Rock Island County | 144,672 | $24,491 | $3.5B |
| Kendall County | 131,869 | $4,573 | $603.0M |
Federal Spending Guides
Nearby Counties With Similar Federal Spending
Counties with per-capita federal spending closest to St. Clair County's $10,397 - prioritizing Illinois peers first.
Frequently Asked Questions
How much federal spending did St. Clair County, Illinois receive?
How does St. Clair County's per capita spending compare to the national average?
What is the population of St. Clair County, Illinois?
Read our methodology - how this data is sourced, computed, and presented.
Verify with USASpending.gov → Verify population with U.S. Census Bureau →
Every figure on PlainSpending is computed directly from USASpending.gov award-transaction data, no number is typed in by an editor. This page aggregates every federal award with a place-of-performance in this county, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.