RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4331 locations in the last 30 days (4490 reports) · Last sighting 2 days ago

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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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/13/202610106 S OGLESBY AVESouth Deering7Completed1 dayInternetCity 311
6/9/202610107 S CALIFORNIA AVEBeverly19Completed1 dayAlderman's OfficeCity 311
6/22/202610107 S PRINCETON AVERoseland9Completed2 daysPhone CallCity 311
8/13/202610107 S PRINCETON AVERoseland9Completed13 daysPhone CallCity 311
3/31/202610109 S WINSTON AVEWashington Heights21Completed1 dayPhone CallCity 311
3/24/202610109 S WINSTON AVEWashington Heights21Completed1 dayInternetCity 311
4/2/202610109 S WINSTON AVEWashington Heights21Completed1 dayPhone CallCity 311
7/2/20261010 N AVERS AVEHumboldt Park37Completed7 daysMobile DeviceCity 311
8/18/20251010 N KEYSTONE AVEHumboldt Park37Completed11 daysAlderman's OfficeCity 311
9/2/20251010 N KEYSTONE AVEHumboldt Park37Completed9 daysAlderman's OfficeCity 311
12/11/20251010 N MONTICELLOHumboldt Park27Completed1 daySalesforce Mobile AppCity 311
6/1/20261010 N OAKLEY BLVDWest Town36Completed4 daysMobile DeviceCity 311
8/14/20261010 N WESTERN AVEWest Town36Completed10 daysPhone CallCity 311
8/21/20261010 N WESTERN AVEWest Town36Completed12 daysPhone CallCity 311
3/31/20261010 S WESTERN AVENear West Side28Canceled0 daysPhone CallCity 311
1/9/20261010 W 20TH PLLower West Side25Completed3 daysInternetCity 311
5/15/20261010 W 20TH PLLower West Side25Completed5 daysMobile DeviceCity 311
8/19/20251010 W BELDEN AVELincoln Park43Completed14 daysMobile DeviceCity 311
9/29/20251010 W CULLERTON STLower West Side25Completed7 daysPhone CallCity 311
6/1/20261010 W DIVERSEY AVELake View44Completed2 daysPhone CallCity 311
5/15/20261010 W WOLFRAM STLake View44Completed4 daysMobile DeviceCity 311
6/30/202610110 S PRINCETON AVERoseland9Completed8 daysPhone CallCity 311
6/8/202610111 S EWING AVEEast Side10Completed2 daysMobile DeviceCity 311
8/6/202510111 S EWING AVEEast Side10Completed5 daysMobile DeviceCity 311
6/4/202610111 S LOWE AVEWashington Heights9Completed4 daysPhone CallCity 311
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