RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4384 locations in the last 30 days (4539 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/20/20263549 S UNION AVEBridgeport11Completed1 dayPhone CallCity 311
4/20/20263538 S UNION AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
9/10/20261311 W COLUMBIA AVERogers Park49Completed1 dayPhone CallCity 311
1/27/202610857 S NORMAL AVERoseland21Completed1 dayMobile DeviceCity 311
1/29/20264129 W WELLINGTON AVEAvondale31Completed1 dayAlderman's OfficeCity 311
4/15/20265100 W WAVELAND AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
2/19/20261461 W 71ST PLWest Englewood17Completed1 dayPhone CallCity 311
11/2/20254508 S HERMITAGE AVENew City15Completed1 dayAlderman's OfficeCity 311
4/2/20261624 N FAIRFIELD AVEWest Town26Completed1 dayPhone CallCity 311
3/22/202610126 S SPRINGFIELD AVEMount Greenwood19Completed1 dayInternetCity 311
1/19/20261641 W MARQUETTE RDWest Englewood16Completed1 dayPhone CallCity 311
2/23/20266637 S CHAMPLAIN AVEWoodlawn20Completed1 dayInternetCity 311
4/8/20268825 S NORMAL AVEAuburn Gresham21Completed1 dayPhone CallCity 311
1/19/20261514 W 61ST STWest Englewood16Completed1 dayPhone CallCity 311
8/13/20266509 S MARSHFIELD AVEWest Englewood15Completed1 dayPhone CallCity 311
3/5/20269523 S EWING AVEEast Side10Completed1 dayAlderman's OfficeCity 311
3/12/20265215 S KEDZIE AVEGage Park14Completed1 dayPhone CallCity 311
12/23/2025216 E 109TH STRoseland9Completed1 dayPhone CallCity 311
10/23/20252019 N KARLOV AVEHermosa26Completed1 dayPhone CallCity 311
12/15/20251515 E 56TH STHyde Park5Completed1 dayPhone CallCity 311
3/19/20266605 S ROCKWELL STChicago Lawn16Completed1 dayPhone CallCity 311
11/13/20252616 N SPRINGFIELD AVELogan Square35Completed1 dayPhone CallCity 311
3/24/20263854 W 109TH PLMount Greenwood19Completed1 dayPhone CallCity 311
12/11/20252883 S THROOP STBridgeport11Completed1 dayInternetCity 311
4/29/2026216 S GREEN STNear West Side34Completed1 dayPhone CallCity 311
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