RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4485 locations in the last 30 days (4633 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/13/20267013 W SUMMERDALE AVENorwood Park41Completed2 daysInternetCity 311
8/12/20267013 W CORNELIA AVEDunning38Completed16 daysAlderman's OfficeCity 311
6/9/20267013 S GREEN STEnglewood16Completed2 daysMobile DeviceCity 311
4/3/20267012 W BERWYN AVENorwood Park41Completed2 daysMobile DeviceCity 311
7/15/20267012 S CREGIER AVESouth Shore5Completed9 daysPhone CallCity 311
2/22/20267011 W CORNELIA AVEDunning38Completed3 daysMobile DeviceCity 311
1/28/20267011 W 64TH STClearing13Completed2 daysMobile DeviceCity 311
10/27/20257011 S WESTERN AVEChicago Lawn17Completed1 dayPhone CallCity 311
7/30/20257011 S PERRY AVEGreater Grand Crossing6Completed7 daysInternetCity 311
8/1/20257011 S BISHOP STWest Englewood17Completed10 daysPhone CallCity 311
5/16/20267010 W SUMMERDALE AVENorwood Park41Completed2 daysPhone CallCity 311
5/27/20267010 W SUMMERDALE AVENorwood Park41Completed1 dayPhone CallCity 311
8/12/20257010 W SCHOOL STDunning38Completed9 daysMobile DeviceCity 311
7/19/20267010 W SCHOOL STDunning38Completed12 daysMobile DeviceCity 311
11/21/20257010 W SCHOOL STDunning38Completed3 daysPhone CallCity 311
11/19/20257010 W SCHOOL STDunning38Completed1 dayMobile DeviceCity 311
8/11/20257010 W FOSTER AVENorwood Park41Completed11 daysPhone CallCity 311
7/5/20267010 S THROOP STWest Englewood17Completed2 daysInternetCity 311
10/23/20257010 S EBERHART AVEGreater Grand Crossing6Completed5 daysPhone CallCity 311
7/17/2026700 W WAYMAN STNear West Side34Completed6 daysMobile DeviceCity 311
8/11/2025700 W 60TH STEnglewood16Completed4 daysPhone CallCity 311
9/21/2025700 W 16TH STNear West Side25Completed9 daysMobile DeviceCity 311
6/23/2026700 W 116TH STWest Pullman21Completed3 daysPhone CallCity 311
9/2/2025700 S OAKLEY BLVDNear West Side28Completed7 daysInternetCity 311
3/18/2026700 S OAKLEY BLVDNear West Side28Completed1 dayAlderman's OfficeCity 311
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