RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4311 locations in the last 30 days (4496 reports) · Last sighting 14 hours 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.

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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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/27/20266782 N SAUGANASH AVEForest Glen45Completed3 daysAlderman's OfficeCity 311
10/5/20264132 N CLARENDON AVEUptown46Completed3 daysInternetCity 311
9/26/20251635 N LARAMIE AVEAustin37Completed3 daysPhone CallCity 311
3/2/202612406 S NORMAL AVEWest Pullman9Completed3 daysPhone CallCity 311
9/28/20265128 S MICHIGAN AVEWashington Park3Completed3 daysPhone CallCity 311
1/23/20261800 W 48TH STNew City15Completed3 daysPhone CallCity 311
3/27/20265271 N NORTHWEST HWYJefferson Park45Completed3 daysPhone CallCity 311
10/24/20259804 S MUSKEGON AVESouth Deering10Completed3 daysPhone CallCity 311
6/29/20265717 S MOODY AVEGarfield Ridge13Completed3 daysAlderman's OfficeCity 311
10/31/202510500 S CENTRAL PARK AVEMount Greenwood19Completed3 daysPhone CallCity 311
1/30/20261620 N TRIPP AVEHumboldt Park26Completed3 daysInternetCity 311
9/19/20255734 N AUSTIN AVENorwood Park45Completed3 daysPhone CallCity 311
4/24/20264746 S HAMLIN AVEArcher Heights14Completed3 daysPhone CallCity 311
1/23/20265001 S TALMAN AVEGage Park15Completed3 daysPhone CallCity 311
9/19/20252751 N SEMINARY AVELincoln Park43Completed3 daysPhone CallCity 311
5/24/20263396 N RIDGEWAY AVEAvondale30Completed3 daysInternetCity 311
8/25/20251932 S KEDZIE AVENorth Lawndale24Completed3 daysPhone CallCity 311
10/26/20254957 S WABASH AVEGrand Boulevard3Completed3 daysPhone CallCity 311
10/3/202521 W CHESTNUT STNear North Side42Completed3 daysInternetCity 311
2/14/20263023 N HARLEM AVEMontclare29Completed3 daysPhone CallCity 311
6/15/20265747 S HOYNE AVEWest Englewood15Completed3 daysAlderman's OfficeCity 311
5/8/20261619 N KIMBALL AVEHumboldt Park26Completed3 daysInternetCity 311
9/26/20252705 W CARMEN AVELincoln Square40Completed3 daysPhone CallCity 311
11/3/20252751 N LINCOLN AVELincoln Park43Completed3 daysInternetCity 311
9/22/20261525 W EDGEWATER AVEEdgewater48Completed3 daysMobile DeviceCity 311
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