RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4346 locations in the last 30 days (4527 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.

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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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/26/20259235 S BRANDON AVESouth Chicago10Completed3 daysInternetCity 311
2/28/20264412 N KEDZIE AVEAlbany Park33Completed3 daysInternetCity 311
10/3/2025441 E 71ST STGreater Grand Crossing6Completed3 daysPhone CallCity 311
1/23/20261801 W 45TH STNew City15Completed3 daysPhone CallCity 311
6/26/20262735 N LINCOLN AVELincoln Park43Completed3 daysInternetCity 311
1/2/20263717 N WAYNE AVELake View44Completed3 daysPhone CallCity 311
6/5/202610549 S MORGAN STWashington Heights21Completed3 daysPhone CallCity 311
11/10/2025610 N MAY STWest Town27Completed3 daysInternetCity 311
10/31/20255845 W ROSCOE STPortage Park30Completed3 daysPhone CallCity 311
6/8/20263700 N SPAULDING AVEIrving Park33Completed3 daysInternetCity 311
3/13/20264045 W BARRY AVEAvondale31Completed3 daysAlderman's OfficeCity 311
9/22/20266642 N CLARK STRogers Park49Completed3 daysInternetCity 311
3/6/20265311 W EDDY STPortage Park30Completed3 daysPhone CallCity 311
4/3/202615 E PEARSON STNear North Side42Completed3 daysInternetCity 311
2/28/20264418 N KEDZIE AVEAlbany Park33Completed3 daysInternetCity 311
1/2/20263851 N LAKEWOOD AVELake View44Completed3 daysPhone CallCity 311
6/29/20262301 W 47TH PLNew City15Completed3 daysPhone CallCity 311
9/18/2026401 W BELDEN AVELincoln Park43Completed3 daysInternetCity 311
11/15/20251421 S WABASH AVENear South Side3Completed3 daysMobile DeviceCity 311
10/21/2025145 N BELL AVENear West Side27Completed3 daysInternetCity 311
4/24/20265806 S MEADE AVEGarfield Ridge13Completed3 daysInternetCity 311
2/21/20262626 S SHIELDS AVEArmour Square11Completed3 daysPhone CallCity 311
8/15/2025846 W 50TH STNew City20Completed3 daysPhone CallCity 311
5/19/20267224 S YATES BLVDSouth Shore7Completed3 daysInternetCity 311
2/22/20267011 W CORNELIA AVEDunning38Completed3 daysMobile DeviceCity 311
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