RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4346 locations in the last 30 days (4528 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
10/20/20252635 N SHEFFIELD AVELincoln Park43Completed1 dayPhone CallCity 311
9/22/20252635 N SHEFFIELD AVELincoln Park43Completed4 daysMobile DeviceCity 311
4/25/20262635 N SHEFFIELD AVELincoln Park43Completed2 daysMobile DeviceCity 311
8/28/20252635 N TALMAN AVELogan Square1Completed14 daysInternetCity 311
9/15/20262635 S HILLOCK AVEBridgeport11Completed14 days—City 311
9/12/20252635 S KOSTNER AVESouth Lawndale22Completed10 daysPhone CallCity 311
10/16/20262635 S KOSTNER AVESouth Lawndale22Completed4 daysPhone CallCity 311
10/23/20262635 S TRIPP AVESouth Lawndale22Open—Alderman's OfficeCity 311
10/15/20252635 W ALTGELD STLogan Square1Completed7 daysAlderman's OfficeCity 311
10/21/20262635 W LELAND AVELincoln Square47Open—InternetCity 311
10/5/20262635 W THOMAS STWest Town36Completed14 daysPhone CallCity 311
11/24/20252636 N AVERS AVELogan Square35Completed4 daysInternetCity 311
8/10/20262636 N HALSTED STLincoln Park43Completed15 daysInternetCity 311
3/19/20262636 N SEMINARY AVELincoln Park43Completed1 dayInternetCity 311
7/29/20252636 W 23RD PLSouth Lawndale25Completed9 daysInternetCity 311
8/20/20252636 W 71ST STChicago Lawn17Completed8 daysPhone CallCity 311
9/24/20262636 W CULLERTON STSouth Lawndale25Completed11 daysInternetCity 311
8/24/20262636 W FARRAGUT AVELincoln Square40Completed9 daysAlderman's OfficeCity 311
1/7/20262636 W GREGORY STLincoln Square40Completed1 dayPhone CallCity 311
10/28/20252636 W THOMAS STWest Town36Completed6 daysPhone CallCity 311
7/12/20262636 W WINNEMAC AVELincoln Square40Completed8 daysInternetCity 311
10/24/20262637 N SAWYER AVELogan Square35Open—Mobile DeviceCity 311
4/24/20262637 W 84TH PLAshburn18Completed3 daysPhone CallCity 311
10/7/20262637 W GRANVILLE AVEWest Ridge40Completed14 daysInternetCity 311
6/9/20262637 W HIRSCH STWest Town26Completed3 daysMobile DeviceCity 311
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