RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4571 locations in the last 30 days (4718 reports) · Last sighting 19 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.

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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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/16/20267411 N GREENVIEW AVERogers Park49Completed1 dayInternetCity 311
4/14/20261833 W PATTERSON AVENorth Center47Completed1 dayMobile DeviceCity 311
8/12/20259932 S NORMAL AVEWashington Heights9Completed1 dayPhone CallCity 311
4/21/20267200 N HARLEM AVEEdison Park41Completed1 dayInternetCity 311
2/19/20264859 S UNION AVENew City15Completed1 dayPhone CallCity 311
1/7/20261910 N CALIFORNIA AVELogan Square1Completed1 dayMobile DeviceCity 311
2/15/20265960 W ROOSEVELT RDAustin29Completed1 dayInternetCity 311
11/19/20255800 W ROSCOE STPortage Park30Completed1 dayAlderman's OfficeCity 311
4/23/20261120 N AVERS AVEHumboldt Park37Completed1 dayMobile DeviceCity 311
2/8/20262544 W AUGUSTA BLVDWest Town36Completed1 dayMobile DeviceCity 311
3/12/20265350 N NASHVILLE AVENorwood Park41Completed1 dayMobile DeviceCity 311
6/9/20262705 W GREGORY STLincoln Square40Completed1 dayPhone CallCity 311
6/10/20263406 N PACIFIC AVEDunning38Completed1 dayMobile DeviceCity 311
4/7/20262544 N BURLING STLincoln Park43Completed1 dayPhone CallCity 311
9/2/20256270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
1/6/20267300 N MEADE AVEForest Glen45Completed1 dayPhone CallCity 311
6/4/20265721 S NAGLE AVEGarfield Ridge13Completed1 dayInternetCity 311
10/6/20251115 W MONTANA STLincoln Park43Completed1 dayPhone CallCity 311
4/2/20269610 S CLAREMONT AVEBeverly19Completed1 dayPhone CallCity 311
11/24/20251507 N CLEVELAND AVENear North Side2Completed1 dayInternetCity 311
8/7/20251918 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
4/26/20267908 S UNION AVEAuburn Gresham6Completed1 dayMobile DeviceCity 311
3/5/20266421 S CLAREMONT AVEChicago Lawn16Completed1 dayPhone CallCity 311
1/29/2026644 W GRACE STLake View46Completed1 dayMobile DeviceCity 311
4/29/20265790 N ELSTON AVEJefferson Park45Completed1 dayPhone CallCity 311
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