Federal Sentencing · National · FY2025
Harshest Sentencing Districts
The U.S. federal districts with the longest average prison sentences in FY2025, ranked from USSC case-level data against the 51.9-month national average.
- 129 mo
- Longest district average
- 52 mo
- National average FY2025
- 20
- Districts ranked
The U.S. Sentencing Commission's FY2024 Sourcebook records more than 61,000 federal sentencing cases under the Federal Sentencing Guidelines. The Commission's annual Sourcebook and datafiles cover all 94 federal judicial districts; see our methodology for the data refresh cadence and calculation scope.
"Harshest" here describes each district's average sentence length, not judicial character. A district's average reflects its offense mix - districts with more weapons, trafficking, and fraud cases carry higher average guideline ranges regardless of who is on the bench - along with prosecutorial charging practices and caseload composition.
The verdict
The Southern Iowa district imposed the longest average federal sentences in the country in FY2025: 129.3 months, 149% above the 51.9-month national average - the #20 cutoff to make this list is 87.0 months.
- 129.3 mo
- longest district average
- 87.0 mo
- #20 cutoff to make this list
- 149% higher
- vs. national average
- 51.9 mo
- U.S. average FY2025
For educational and research purposes only. Not legal advice. Rankings reflect average sentence length; individual cases vary substantially.
Top 15 Harshest Sentencing Districts -- FY2025
Average imposed sentence in months, federal district courts
- Southern Iowa
Southern Iowa
129.3 mo
- Southern Indiana
Southern Indiana
112.4 mo
- Eastern Oklahoma
Eastern Oklahoma
108.3 mo
- Western Missouri
Western Missouri
106.3 mo
- Eastern Kentucky
Eastern Kentucky
102.8 mo
- Eastern Tennessee
Eastern Tennessee
102.1 mo
- Northern Iowa
Northern Iowa
101.4 mo
- Western Michigan
Western Michigan
101 mo
- Western Arkansas
Western Arkansas
100.8 mo
- Northern Texas
Northern Texas
96.9 mo
- Central Illinois
Central Illinois
96.8 mo
- Eastern Texas
Eastern Texas
96.6 mo
- Middle North Carolina
Middle North Carolina
92.8 mo
- Northern Indiana
Northern Indiana
92 mo
- Western Louisiana
Western Louisiana
90.6 mo
What this shows Southern Iowa led FY2025 at 129.3 months -- 149% above the 51.9-month national average. The gap between the harshest and most lenient shows how much geographic variation persists after Booker.
| Rank | District | Circuit | Cases | Avg Sentence | vs. National | Disparity |
|---|---|---|---|---|---|---|
| #1 | Southern Iowa Iowa | 8th | 343 | +149.1% | +44.4% | |
| #2 | Southern Indiana Indiana | 7th | 356 | +116.6% | +49.0% | |
| #3 | Eastern Oklahoma Oklahoma | 10th | 259 | +108.7% | +346.5% | |
| #4 | Western Missouri Missouri | 8th | 668 | +104.8% | +25.4% | |
| #5 | Eastern Kentucky Kentucky | 6th | 390 | +98.1% | +16.2% | |
| #6 | Eastern Tennessee Tennessee | 6th | 532 | +96.7% | +7.3% | |
| #7 | Northern Iowa Iowa | 8th | 313 | +95.4% | +33.3% | |
| #8 | Western Michigan Michigan | 6th | 242 | +94.6% | +22.2% | |
| #9 | Western Arkansas Arkansas | 8th | 164 | +94.2% | +29.3% | |
| #10 | Northern Texas Texas | 5th | 1,386 | +86.7% | +43.0% | |
| #11 | Central Illinois Illinois | 7th | 218 | +86.5% | +56.2% | |
| #12 | Eastern Texas Texas | 5th | 1,015 | +86.1% | +35.4% | |
| #13 | Middle North Carolina North Carolina | 4th | 312 | +78.8% | +65.6% | |
| #14 | Northern Indiana Indiana | 7th | 279 | +77.3% | +15.5% | |
| #15 | Western Louisiana Louisiana | 5th | 378 | +74.6% | +3.5% | |
| #16 | Western Tennessee Tennessee | 6th | 339 | +71.1% | +6.0% | |
| #17 | Nebraska Nebraska | 8th | 433 | +71.1% | +104.4% | |
| #18 | Hawaii Hawaii | 9th | 142 | +69.9% | +9.2% | |
| #19 | District of Columbia District of Columbia | DC | 423 | +69.9% | +4.3% | |
| #20 | Eastern North Carolina North Carolina | 4th | 811 | +67.6% | +15.8% |
The bar to make the 20 harshest districts (FY2025)
Every rankable district by average sentence; the marker is the 87.0-month cutoff needed to reach this list.
87 77th percentile longer than 77% of 88 federal districts
Each bar is a band; taller bars hold more federal districts. 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 U.S. Sentencing Commission, Individual Offender Datafiles · FY2025
Ranked by average sentence length in months for FY2025. Includes districts with 100+ cases. "Disparity" reflects the average percentage difference vs. the national average across offense types in that district. Source: United States Sentencing Commission.
What this means
Where a federal case is prosecuted shapes sentence outcomes as much as what offense is charged - Southern Iowa averaged 149% longer than the national mean in FY2025.
- Geographic disparity is structural, not random. Districts with heavier concentrations of weapons, trafficking, and fraud offenses carry higher average guidelines ranges, so higher average sentences. Comparing a district's offense mix with the national average reveals how much is driven by case type versus judicial culture. Explore all rankings
- The top-10 harshest districts are stable year to year. Persistent differences in prosecutorial charging decisions, cooperation rates, and local judicial philosophy create durable geographic patterns that repeat across fiscal years.
- Use district profiles to go deeper. Average sentence length is one signal; the compliance rate (what share of sentences fall within the guideline range) and the disparity score reveal whether a district is truly outlier or simply handles a different mix of offenses. Browse district profiles
For educational and research purposes only. Rankings reflect average sentence length (FY2025); individual sentences depend on criminal history, cooperation, and case-specific factors these averages cannot capture.