Chicago 311 service requests
IL· Population 2,665,039 (2020)
Current release
Data through June 30, 2026
Data from January 2021 through June 30, 2026
Source data: Open data ↗
File a 311 request in Chicago → This page shows historical data only.
Monthly average
153.3K
requests per month (all time)
174.5K
requests per month (last 12 months)
Latest month
215.8K
requests in June 2026
Monthly request volume
Total 311 requests filed per month. Months with no reported data are shaded red.
Category mix over time
Monthly volume grouped by service category.
Temporal patterns
- Daily average
- 5.0K per day
- June 2026
- 215.8K requests
- Peak filing time
- Monday, 2pm
- Weekend share
- 20.9% of filings
- After-hours share
- 44.0% of filings
- Most common type
- 311 INFORMATION ONLY CALL
Requests by category
Select a category for its monthly trend.
| Category | Past 12 months | Share |
|---|---|---|
| Service Inquiries | 112.4K | 28.3% |
| Noise | 82.2K | 20.7% |
| Trees & Parks | 50.7K | 12.8% |
| Trash & Recycling | 23.6K | 5.9% |
| Animals & Pests | 19.4K | 4.9% |
| Street Lights & Signals | 18.0K | 4.5% |
| Graffiti | 16.1K | 4.0% |
| Potholes & Roads | 13.5K | 3.4% |
| Building & Housing Maintenance | 11.4K | 2.9% |
| Water, Sewer & Drainage | 10.2K | 2.6% |
| Other | 9.0K | 2.3% |
| Abandoned Vehicles | 8.8K | 2.2% |
| Parking | 8.3K | 2.1% |
| Street Cleaning | 5.2K | 1.3% |
| Sidewalks | 5.2K | 1.3% |
| Illegal Dumping | 3.4K | 0.9% |
Source & provenance
Counts on this page are derived from Chicago’s open 311 data feed. Coverage: January 2021 through June 30, 2026. 10.0M total records on file.
How to access the raw data: Published as a single Socrata dataset, "311 Service Requests" (dataset id: v6vf-nfxy). Consolidated from 2019 onward. Legacy type-specific datasets (graffiti, rodent baiting, street lights) exist but are frozen at the time of the consolidation.
Source dataset: data.cityofchicago.org