RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4349 locations in the last 30 days (4512 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/8/20263617 W CORTLAND STLogan Square26Completed3 daysInternetCity 311
9/29/20251635 N LOTUS AVEAustin37Completed3 daysMobile DeviceCity 311
3/15/20262419 W MCLEAN AVELogan Square1Completed3 daysInternetCity 311
3/15/20262435 W MCLEAN AVELogan Square1Completed3 daysInternetCity 311
6/19/202610900 S TROY STMount Greenwood19Completed3 daysPhone CallCity 311
3/29/20264532 N CHRISTIANA AVEAlbany Park33Completed3 daysInternetCity 311
1/5/2026900 W 19TH STLower West Side25Completed3 daysInternetCity 311
11/1/20252455 N NEWCASTLE AVEMontclare36Completed3 daysPhone CallCity 311
5/19/20266331 W NEWPORT AVEDunning30Completed3 daysMobile DeviceCity 311
6/29/20265848 N WHIPPLE STWest Ridge50Completed3 daysMobile DeviceCity 311
4/20/20267663 N ROGERS AVERogers Park49Completed3 daysPhone CallCity 311
12/26/2025834 S OAKLEY BLVDNear West Side28Completed3 daysMobile DeviceCity 311
4/26/20261428 W WOLFRAM STLake View32Completed3 daysInternetCity 311
6/20/20263811 N LAKEWOOD AVELake View44Completed3 daysInternetCity 311
1/2/20262951 S ARCHER AVEBridgeport11Completed3 daysInternetCity 311
1/17/20263700 N NEW ENGLAND AVEDunning38Completed3 daysInternetCity 311
10/24/20255208 W 54TH STGarfield Ridge23Completed3 daysInternetCity 311
10/31/2025909 E 52ND STHyde Park20Completed3 daysInternetCity 311
12/19/20251217 W AUGUSTA BLVDWest Town27Completed3 daysInternetCity 311
4/26/20265330 N AUSTIN AVEJefferson Park45Completed3 daysMobile DeviceCity 311
5/4/20267257 N OAKLEY AVEWest Ridge49Completed3 daysPhone CallCity 311
2/20/20265942 W 60TH STClearing13Completed3 daysMobile DeviceCity 311
7/5/20262608 E 93RD STCalumet Heights7Completed3 daysMobile DeviceCity 311
6/28/20266964 N SEELEY AVEWest Ridge40Completed3 daysPhone CallCity 311
3/28/20262715 W HADDON AVEWest Town36Completed3 daysInternetCity 311
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