RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4291 locations in the last 30 days (4475 reports) · Last sighting 17 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.

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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/17/20253239 N OSAGE AVEDunning38Completed3 daysPhone CallCity 311
5/1/20265725 S FRANCISCO AVEGage Park15Completed3 daysPhone CallCity 311
10/24/20257250 S DORCHESTER AVESouth Shore8Completed3 daysMobile DeviceCity 311
6/15/20265158 W SCHOOL STPortage Park31Completed3 daysInternetCity 311
9/29/2025345 W 42ND PLFuller Park3Completed3 daysAlderman's OfficeCity 311
8/9/20267141 W ADDISON STDunning38Completed3 daysInternetCity 311
11/21/20253250 N PANAMA AVEDunning38Completed3 daysPhone CallCity 311
7/26/20262936 W PERSHING RDBrighton Park12Completed3 daysMobile DeviceCity 311
11/25/20252941 N HAMLIN AVEAvondale31Completed3 daysPhone CallCity 311
4/3/20263175 N HUDSON AVELake View44Completed3 daysInternetCity 311
1/23/20264600 S HERMITAGE AVENew City15Completed3 daysPhone CallCity 311
5/19/20261454 N SPRINGFIELD AVEHumboldt Park26Completed3 daysMobile DeviceCity 311
6/13/20264350 S HERMITAGE AVENew City15Completed3 daysMobile DeviceCity 311
10/24/20251327 E 72ND STSouth Shore8Completed3 daysMobile DeviceCity 311
6/13/20264402 W WEST END AVEWest Garfield Park28Completed3 daysMobile DeviceCity 311
4/24/20265123 W ALTGELD STBelmont Cragin31Completed3 daysAlderman's OfficeCity 311
3/1/20265129 S HARPER AVEHyde Park4Completed3 daysMobile DeviceCity 311
12/26/20259240 S KINGSTON AVECalumet Heights7Completed3 daysMobile DeviceCity 311
1/23/20264600 S WOLCOTT AVENew City15Completed3 daysPhone CallCity 311
1/23/20264700 S HERMITAGE AVENew City15Completed3 daysPhone CallCity 311
6/8/20264532 N MERRIMAC AVEPortage Park38Completed3 daysPhone CallCity 311
12/5/20257741 S ABERDEEN STAuburn Gresham17Completed3 daysPhone CallCity 311
5/15/20267742 S EAST END AVESouth Shore8Completed3 daysPhone CallCity 311
3/20/20262332 W JACKSON BLVDNear West Side27Completed3 daysInternetCity 311
5/1/20265827 W ADDISON STPortage Park30Completed3 daysPhone CallCity 311
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