RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4457 locations in the last 30 days (4635 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20252553 N MCVICKER AVEBelmont Cragin30Completed12 daysInternetCity 311
4/11/20262553 W 38TH STBrighton Park12Completed2 daysInternetCity 311
3/6/20262553 W 38TH STBrighton Park12Completed4 daysPhone CallCity 311
10/9/20262553 W 81ST STAshburn18Completed13 daysMobile DeviceCity 311
10/15/20252553 W 81ST STAshburn18Completed6 daysMobile DeviceCity 311
10/20/20262553 W 82ND STAshburn18Open—InternetCity 311
2/8/20262553 W CORTEZ STWest Town36Completed1 dayMobile DeviceCity 311
6/6/20262553 W CORTLAND STLogan Square1Completed4 daysInternetCity 311
9/12/20252553 W MONROE STNear West Side27Completed7 daysPhone CallCity 311
9/12/20252553 W MONROE STNear West Side27Completed7 daysPhone CallCity 311
4/23/20262553 W MORSE AVEWest Ridge40Completed1 dayInternetCity 311
4/27/20262554 E 79TH STSouth Shore7Completed1 dayAlderman's OfficeCity 311
3/22/20262554 N MILWAUKEE AVELogan Square35Completed1 dayMobile DeviceCity 311
3/19/20262554 N MILWAUKEE AVELogan Square35Completed0 daysMobile DeviceCity 311
3/11/20262554 N MILWAUKEE AVELogan Square35Completed2 daysPhone CallCity 311
8/19/20262554 N MONITOR AVEBelmont Cragin30Completed13 daysPhone CallCity 311
11/24/20252554 N NEW ENGLAND AVEMontclare36Completed4 daysPhone CallCity 311
8/4/20252554 N NORMANDY AVEMontclare36Completed15 daysMobile DeviceCity 311
2/17/20262554 N SOUTHPORT AVELincoln Park32Completed2 daysInternetCity 311
3/17/20262554 S WASHTENAW AVESouth Lawndale24Completed6 daysPhone CallCity 311
8/30/20262554 W 113TH STMorgan Park19Completed5 daysInternetCity 311
11/4/20252554 W 38TH STBrighton Park12Completed3 daysPhone CallCity 311
9/18/20252554 W 38TH STBrighton Park12Completed11 daysAlderman's OfficeCity 311
11/4/20252554 W AUGUSTA BLVDWest Town36Completed2 daysMobile DeviceCity 311
2/8/20262554 W AUGUSTA BLVDWest Town36Completed1 dayMobile DeviceCity 311
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