RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4355 locations in the last 30 days (4537 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/6/20255810 S RICHMOND STGage Park15Completed3 daysInternetCity 311
6/2/20266106 N WASHTENAW AVEWest Ridge40Completed3 daysInternetCity 311
4/24/20264425 S KOMENSKY AVEArcher Heights14Completed3 daysPhone CallCity 311
10/28/20255733 S CALUMET AVEWashington Park20Completed3 daysInternetCity 311
11/2/20251800 S SPRINGFIELD AVENorth Lawndale24Completed3 daysPhone CallCity 311
2/21/2026509 W 62ND STEnglewood20Completed3 daysPhone CallCity 311
6/1/20265730 N FAIRFIELD AVEWest Ridge40Completed3 daysInternetCity 311
7/17/20263045 W 41ST PLBrighton Park12Completed3 daysMobile DeviceCity 311
6/29/20268361 W SUMMERDALE AVENorwood Park41Completed3 daysPhone CallCity 311
1/30/20265600 W NEWPORT AVEPortage Park30Completed3 daysAlderman's OfficeCity 311
2/28/20261706 W SCHOOL STLake View32Completed3 daysInternetCity 311
9/23/20251826 W PRATT AVERogers Park49Completed3 daysInternetCity 311
10/20/20254525 N HAMILTON AVELincoln Square47Completed3 daysAlderman's OfficeCity 311
3/1/20262145 N LARRABEE STLincoln Park43Completed3 daysInternetCity 311
8/28/20264153 W NELSON STAvondale31Completed3 daysPhone CallCity 311
2/6/20263721 W 51ST STWest Elsdon14Completed3 daysAlderman's OfficeCity 311
3/2/20263434 W EVERGREEN AVEHumboldt Park26Completed3 daysPhone CallCity 311
5/18/20261745 N SHEFFIELD AVELincoln Park2Completed3 daysAlderman's OfficeCity 311
5/26/20264044 W NELSON STAvondale31Completed3 daysAlderman's OfficeCity 311
6/22/202610317 S WHIPPLE STMount Greenwood19Completed3 daysInternetCity 311
12/12/20252047 W GRACE STNorth Center47Completed3 daysPhone CallCity 311
2/28/20263825 N PINE GROVE AVELake View46Completed3 daysInternetCity 311
5/29/20261641 W PRATT AVERogers Park49Completed3 daysInternetCity 311
11/7/20253715 W 105TH STMount Greenwood19Completed3 daysPhone CallCity 311
5/26/20261725 N FREMONT STLincoln Park43Completed3 daysMobile DeviceCity 311
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