RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4629 locations in the last 30 days (4778 reports) · Last sighting 21 hours ago

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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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/4/20267105 N RIDGE BLVDRogers Park49Completed1 dayInternetCity 311
3/12/20263815 N ALBANY AVEIrving Park33Completed1 dayMobile DeviceCity 311
9/2/20262337 E 85TH STSouth Chicago8Completed1 dayPhone CallCity 311
5/4/20264337 W PARKER AVEHermosa31Completed1 dayPhone CallCity 311
11/24/20252328 N KENNETH AVEHermosa31Completed1 dayPhone CallCity 311
2/17/20263160 N MILWAUKEE AVEAvondale31Completed1 dayMobile DeviceCity 311
11/16/20254717 N TROY STAlbany Park33Completed1 dayInternetCity 311
4/23/20261545 W ADDISON STLake View47Completed1 dayInternetCity 311
8/30/20261151 W ERIE STWest Town27Completed1 dayPhone CallCity 311
5/21/20264117 W WELLINGTON AVEAvondale31Completed1 dayPhone CallCity 311
5/6/20261913 W FLETCHER STNorth Center32Completed1 dayInternetCity 311
6/8/20267442 S CHAMPLAIN AVEGreater Grand Crossing6Completed1 dayInternetCity 311
8/20/20265715 S HAMILTON AVEWest Englewood15Completed1 dayAlderman's OfficeCity 311
4/1/20265156 S MULLIGAN AVEGarfield Ridge23Completed1 dayPhone CallCity 311
3/26/2026648 W GRACE STLake View46Completed1 dayInternetCity 311
8/24/20266708 W SCHREIBER AVENorwood Park41Completed1 dayPhone CallCity 311
9/2/20257355 W BARRY AVEDunning29Completed1 dayPhone CallCity 311
5/20/20262724 S NORMAL AVEBridgeport11Completed1 dayMobile DeviceCity 311
4/2/20268854 S BUFFALO AVESouth Chicago10Completed1 dayMobile DeviceCity 311
7/1/20261817 N BISSELL STLincoln Park43Completed1 dayInternetCity 311
5/20/20262656 S MILLARD AVESouth Lawndale22Completed1 dayInternetCity 311
9/9/20257649 S EGGLESTON AVEGreater Grand Crossing17Completed1 dayPhone CallCity 311
12/22/20257533 N SEELEY AVERogers Park49Completed1 dayPhone CallCity 311
4/21/20262323 W IOWA STWest Town36Completed1 dayAlderman's OfficeCity 311
3/3/20264307 W DRUMMOND PLHermosa31Completed1 dayAlderman's OfficeCity 311
Page 355 of 2,215
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