RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4482 locations in the last 30 days (4647 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/6/20253424 N OSAGE AVEDunning38Completed1 dayInternetCity 311
3/30/20264116 N MAPLEWOOD AVENorth Center47Completed1 dayInternetCity 311
7/7/202611028 S HOMAN AVEMount Greenwood19Completed1 dayPhone CallCity 311
1/12/20263037 S KOSTNER AVESouth Lawndale22Completed1 dayPhone CallCity 311
4/20/20261709 N HOYNE AVEWest Town32Completed1 dayInternetCity 311
3/17/20263301 W BELLE PLAINE AVEIrving Park33Completed1 dayInternetCity 311
12/9/20255641 W 63RD STClearing13Completed1 dayInternetCity 311
5/19/20264648 W WASHINGTON BLVDAustin28Completed1 dayPhone CallCity 311
6/10/20262108 W 22ND PLLower West Side25Completed1 dayInternetCity 311
4/21/20263609 W 115TH STMount Greenwood19Completed1 dayMobile DeviceCity 311
2/16/20266024 S NATOMA AVEClearing13Completed1 dayMobile DeviceCity 311
12/22/20256965 N PAULINA STRogers Park49Completed1 dayMobile DeviceCity 311
4/22/20262930 N NORDICA AVEMontclare29Completed1 dayMobile DeviceCity 311
4/26/20263 E HURON STNear North Side42Completed1 dayMobile DeviceCity 311
11/17/20251236 W BELMONT AVELake View44Completed1 dayMobile DeviceCity 311
3/30/20265653 S NASHVILLE AVEGarfield Ridge13Completed1 dayMobile DeviceCity 311
6/9/20261515 W OAKDALE AVELake View32Completed1 dayMobile DeviceCity 311
4/27/20263021 E 83RD STSouth Chicago7Completed1 dayMobile DeviceCity 311
2/4/20269821 S WINCHESTER AVEBeverly19Completed1 dayPhone CallCity 311
2/19/20264830 W AINSLIE STForest Glen45Completed1 dayMobile DeviceCity 311
4/8/20262044 N ORLEANS STLincoln Park43Completed1 dayInternetCity 311
1/6/20263056 N MONTICELLO AVEAvondale35Completed1 dayMobile DeviceCity 311
2/19/20263448 N ASHLAND AVELake View47Completed1 dayInternetCity 311
6/9/20261517 W OAKDALE AVELake View32Completed1 dayMobile DeviceCity 311
4/15/2026706 S ADA STNear West Side34Completed1 dayMobile DeviceCity 311
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