RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4625 locations in the last 30 days (4779 reports) · Last sighting 22 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20262921 N NEVA AVEMontclare29Open—InternetCity 311
10/7/20261057 N DAMEN AVEWest Town1Open—Alderman's OfficeCity 311
10/7/20261945 W THOMAS STWest Town1Open—Alderman's OfficeCity 311
10/7/20262219 N SPRINGFIELD AVELogan Square35Open—InternetCity 311
10/7/20264137 W WELLINGTON AVEAvondale31Open—Phone CallCity 311
10/7/20266188 N NASSAU AVENorwood Park45Open—InternetCity 311
10/7/20262111 N CAMPBELL AVELogan Square1Open—Mobile DeviceCity 311
10/7/20268525 W RASCHER AVEO'Hare41Open—InternetCity 311
10/7/20265856 W LAKE STAustin29Open—InternetCity 311
10/7/20263938 W 84TH STAshburn18Completed1 dayPhone CallCity 311
10/7/20265226 N LIEB AVEJefferson Park45Open—InternetCity 311
10/7/20261326 W HURON STWest Town27Open—InternetCity 311
10/7/20262343 N KOSTNER AVEHermosa31Open—Phone CallCity 311
10/7/20261130 W OAKDALE AVELake View44Completed1 dayPhone CallCity 311
10/7/20268010 S HOMAN AVEAshburn18Open—Alderman's OfficeCity 311
10/7/202611001 S WALLACE STRoseland21Open—InternetCity 311
10/7/20266158 S NASHVILLE AVEClearing13Open—InternetCity 311
10/7/202621 N MENARD AVEAustin29Open—Alderman's OfficeCity 311
10/7/20263012 S AVERS AVESouth Lawndale22Open—Phone CallCity 311
10/7/20262171 N PARKSIDE AVEBelmont Cragin36Open—InternetCity 311
10/7/20262517 N LARAMIE AVEBelmont Cragin31Open—Alderman's OfficeCity 311
10/7/20261419 W CULLERTON STLower West Side25Completed1 dayPhone CallCity 311
10/7/20267300 S SEELEY AVEWest Englewood17Open—Phone CallCity 311
10/7/20262307 W ADDISON STNorth Center32Open—InternetCity 311
10/7/20262756 W FULLERTON AVELogan Square1Open—InternetCity 311
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