RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4611 locations in the last 30 days (4765 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.

32080fewer → more

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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/9/20261935 E 71ST STSouth Shore5Completed1 dayInternetCity 311
1/15/20261652 N TROY STHumboldt Park26Completed1 dayInternetCity 311
1/5/20263905 W GEORGE STAvondale31Completed1 dayAlderman's OfficeCity 311
5/21/20263745 N LINCOLN AVENorth Center47Completed1 dayPhone CallCity 311
6/23/20261800 E 78TH STSouth Shore8Completed1 dayInternetCity 311
11/9/20254446 S WALLACE STNew City15Completed1 dayInternetCity 311
4/8/20265529 W NEWPORT AVEPortage Park30Completed1 dayMobile DeviceCity 311
2/23/20266402 S ALBANY AVEChicago Lawn15Completed1 dayInternetCity 311
4/23/20261831 W CHICAGO AVEWest Town36Completed1 dayPhone CallCity 311
4/23/20262316 S HOYNE AVELower West Side25Completed1 dayPhone CallCity 311
12/17/20257655 S LAFLIN STAuburn Gresham17Completed1 dayPhone CallCity 311
4/29/2026325 W 24TH PLArmour Square11Completed1 dayAlderman's OfficeCity 311
3/30/20265524 S KARLOV AVEWest Elsdon13Completed1 dayInternetCity 311
7/6/202650 W 77TH PLGreater Grand Crossing6Completed1 dayPhone CallCity 311
1/11/2026741 W WRIGHTWOOD AVELincoln Park43Completed1 dayMobile DeviceCity 311
5/20/20263021 N SPAULDING AVEAvondale35Completed1 dayPhone CallCity 311
2/26/20262413 N SPAULDING AVELogan Square35Completed1 dayMobile DeviceCity 311
10/30/20255925 S LOOMIS BLVDWest Englewood16Completed1 dayPhone CallCity 311
9/9/20265926 W WAVELAND AVEPortage Park38Completed1 dayInternetCity 311
4/2/20261706 W NELSON STLake View32Completed1 dayMobile DeviceCity 311
1/12/20266049 S MAYFIELD AVEClearing13Completed1 dayInternetCity 311
1/13/20266817 S MORGANEnglewood16Completed1 daySalesforce Mobile AppCity 311
3/25/20265401 S MICHIGAN AVEWashington Park3Completed1 dayPhone CallCity 311
6/4/20264831 S ADA STNew City20Completed1 dayMobile DeviceCity 311
4/2/20264837 S UNION AVENew City15Completed1 dayPhone CallCity 311
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