RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4601 locations in the last 30 days (4766 reports) · Last sighting 10 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/5/20262719 W POTOMAC AVEWest Town26Completed1 dayMobile DeviceCity 311
2/25/20261910 W 83RD STAuburn Gresham17Completed1 dayInternetCity 311
2/16/20263844 N CLARK STLake View44Completed1 dayInternetCity 311
6/15/20265407 W CORTEZ STAustin37Completed1 dayInternetCity 311
2/3/20265900 W 64TH PLClearing13Completed1 dayInternetCity 311
3/5/20264821 N ROCKWELL STLincoln Square40Completed1 dayPhone CallCity 311
2/26/20266143 W FLETCHER STBelmont Cragin30Completed1 dayMobile DeviceCity 311
5/3/20262744 W 22ND PLSouth Lawndale25Completed1 dayInternetCity 311
1/6/20262620 W POTOMAC AVEWest Town26Completed1 dayMobile DeviceCity 311
2/5/20261345 W CARMEN AVEUptown47Completed1 dayInternetCity 311
1/5/20264122 W 31ST STSouth Lawndale22Completed1 dayMobile DeviceCity 311
5/12/20263607 S SEELEY AVEMcKinley Park12Completed1 dayMobile DeviceCity 311
11/16/20253673 N ELSTON AVEIrving Park33Completed1 dayMobile DeviceCity 311
12/21/20252218 W GRANVILLE AVEWest Ridge50Completed1 dayMobile DeviceCity 311
1/27/20262311 N MOODY AVEBelmont Cragin36Completed1 dayMobile DeviceCity 311
6/25/202610102 S LOWE AVEWashington Heights21Completed1 dayPhone CallCity 311
3/25/20264115 W 59TH STWest Lawn13Completed1 dayPhone CallCity 311
4/5/20261459 W WARNER AVELake View47Completed1 dayMobile DeviceCity 311
2/23/20263236 W HOLLYWOOD AVENorth Park39Completed1 dayInternetCity 311
1/19/20261731 N MARSHFIELD AVEWest Town32Completed1 dayInternetCity 311
1/5/20264118 W 31ST STSouth Lawndale22Completed1 dayMobile DeviceCity 311
4/14/20264357 W MAYPOLE AVEWest Garfield Park28Completed1 dayInternetCity 311
2/16/2026841 W IRVING PARK RDLake View46Completed1 dayMobile DeviceCity 311
3/17/20261360 W TOUHY AVERogers Park49Completed1 dayMobile DeviceCity 311
2/10/20265645 W SCHOOL STPortage Park30Completed1 dayMobile DeviceCity 311
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