RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4540 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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/2026447 W 27TH STBridgeport11Open—InternetCity 311
9/25/2026473 W 27TH STBridgeport11Open—InternetCity 311
9/25/20266444 W FOSTER AVENorwood Park41Open—InternetCity 311
9/25/20266446 N NOKOMIS AVEForest Glen45Open—Phone CallCity 311
9/25/20265400 S MERRIMAC AVEGarfield Ridge23Open—Phone CallCity 311
9/25/20261515 W HOLLYWOOD AVEEdgewater48Open—InternetCity 311
9/25/20263525 N NEVA AVEDunning38Open—InternetCity 311
9/25/20262634 S KILDARE AVESouth Lawndale22Open—Mobile DeviceCity 311
9/25/20261940 N KEDZIE AVELogan Square26Open—InternetCity 311
9/25/20264521 W MONTANA STHermosa31Open—InternetCity 311
9/25/20268254 S TROY STAshburn18Open—Phone CallCity 311
9/25/20261209 W ARTHUR AVERogers Park49Open—Phone CallCity 311
9/25/20266930 S SOUTH SHORE DRSouth Shore5Open—InternetCity 311
9/25/20261316 N BELL AVEWest Town1Open—InternetCity 311
9/24/20262636 W CULLERTON STSouth Lawndale25Open—InternetCity 311
9/24/20263001 N LOWELL AVEHermosa31Open—InternetCity 311
9/24/20267100 S ASHLAND AVEWest Englewood17Open—Phone CallCity 311
9/24/20261114 N WOLCOTT AVEWest Town1Open—InternetCity 311
9/24/20263630 N PIONEER AVEDunning38Open—InternetCity 311
9/24/20269741 S HALSTED STWashington Heights21Open—Phone CallCity 311
9/24/20265232 N WESTERN AVELincoln Square40Open—Mobile DeviceCity 311
9/24/20265319 W BARRY AVEBelmont Cragin31Open—InternetCity 311
9/24/20265323 W BARRY AVEBelmont Cragin31Open—InternetCity 311
9/24/20261409 W WINNEMAC AVEUptown47Open—InternetCity 311
9/24/20264800 W WASHINGTON BLVDAustin28Open—InternetCity 311
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