RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4540 locations in the last 30 days (4687 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/23/20261649 N ST LOUIS AVEHumboldt Park26Completed1 dayInternetCity 311
4/26/20267618 S CLYDE AVESouth Shore8Completed1 dayMobile DeviceCity 311
2/18/20262303 W CULLOM AVENorth Center47Completed1 dayPhone CallCity 311
10/7/20252938 S THROOP STBridgeport11Completed1 dayPhone CallCity 311
11/2/20257843 S MARQUETTE AVESouth Shore7Completed1 dayMobile DeviceCity 311
8/12/20259343 S STEWART AVERoseland9Completed1 dayPhone CallCity 311
4/20/20265365 N NORMANDY AVENorwood Park41Completed1 dayInternetCity 311
5/19/20261512 W BIRCHWOOD AVERogers Park49Completed1 dayPhone CallCity 311
2/17/20263507 N RETA AVELake View44Completed1 dayInternetCity 311
4/20/20265885 N HARLEM AVENorwood Park41Completed1 dayMobile DeviceCity 311
2/11/20265334 W NELSON STBelmont Cragin31Completed1 dayMobile DeviceCity 311
11/12/20253615 W BYRON STIrving Park30Completed1 dayInternetCity 311
10/6/20252751 N SEMINARY AVELincoln Park43Completed1 dayPhone CallCity 311
11/4/20252235 S SACRAMENTO AVESouth Lawndale24Completed1 dayInternetCity 311
6/8/20264042 N SAWYER AVEIrving Park33Completed1 dayPhone CallCity 311
4/20/20262937 N AVERS AVEAvondale31Completed1 dayInternetCity 311
5/13/20263637 N ARTESIAN AVENorth Center47Completed1 dayPhone CallCity 311
5/28/20266336 N ROCKWELL STWest Ridge50Completed1 dayPhone CallCity 311
7/31/20253517 N NORMANDY AVEDunning38Completed1 dayPhone CallCity 311
4/16/20267916 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
4/13/20263311 N SOUTHPORT AVELake View44Completed1 dayInternetCity 311
10/27/20257011 S WESTERN AVEChicago Lawn17Completed1 dayPhone CallCity 311
12/1/20258623 S TRIPP AVEAshburn18Completed1 dayMobile DeviceCity 311
12/11/20254342 N RICHMOND STIrving Park33Completed1 dayMobile DeviceCity 311
1/5/20265257 W VAN BUREN STAustin29Completed1 dayMobile DeviceCity 311
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