RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4523 locations in the last 30 days (4678 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.

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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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/20/20263665 N ELSTON AVEIrving Park33Completed1 dayMobile DeviceCity 311
4/1/20263800 N CLARK STLake View44Completed1 dayPhone CallCity 311
4/6/20266334 S LONG AVEClearing13Completed1 dayInternetCity 311
3/5/20264100 W NELSON STAvondale31Completed1 dayPhone CallCity 311
6/29/2026853 N FRANCISCO AVEWest Town36Completed1 dayPhone CallCity 311
3/23/20263851 N LAKEWOOD AVELake View44Completed1 dayPhone CallCity 311
8/16/2026400 E WATERSIDE DRLoop42Completed1 dayMobile DeviceCity 311
3/24/20263424 N HAMLIN AVEAvondale30Completed1 dayInternetCity 311
2/16/20263008 E 78TH STSouth Shore7Completed1 dayPhone CallCity 311
2/18/20264832 N SPAULDING AVEAlbany Park33Completed1 dayPhone CallCity 311
4/6/20266716 W 63RD STClearing13Completed1 dayInternetCity 311
1/29/20262704 N CENTRAL PARK AVELogan Square35Completed1 dayInternetCity 311
3/19/20262511 S WHIPPLE STSouth Lawndale25Completed1 dayInternetCity 311
3/5/20267001 N CALIFORNIA AVEWest Ridge50Completed1 dayPhone CallCity 311
11/13/20256146 W 63RD PLClearing13Completed1 dayInternetCity 311
2/10/20261245 S KOMENSKY AVENorth Lawndale24Completed1 dayPhone CallCity 311
11/19/20255802 S TRIPP AVEWest Elsdon13Completed1 dayAlderman's OfficeCity 311
1/28/20261635 E 72ND STSouth Shore7Completed1 dayPhone CallCity 311
4/7/20266453 S CALIFORNIA AVEChicago Lawn16Completed1 dayPhone CallCity 311
4/6/20263017 W LEXINGTON STEast Garfield Park28Completed1 dayAlderman's OfficeCity 311
6/1/20261645 W 83RD STAuburn Gresham18Completed1 dayAlderman's OfficeCity 311
12/14/20252044 N ORLEANS STLincoln Park43Completed1 dayInternetCity 311
7/21/20265559 S NEWCASTLE AVEGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
12/16/20251921 W CHICAGO AVEWest Town36Completed1 dayMobile DeviceCity 311
11/5/20252012 S LEAVITT STLower West Side25Completed1 dayPhone CallCity 311
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