RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4632 reports) · Last sighting 16 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

57,079 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/8/20251705 N PARKSIDE AVEAustin29Completed2 daysAlderman's OfficeCity 311
10/19/20265258 W MONTANA STBelmont Cragin31Completed2 daysAlderman's OfficeCity 311
1/19/20264113 N PAULINA STLake View47Completed2 daysMobile DeviceCity 311
8/22/20263645 N MOZART STIrving Park35Completed2 daysInternetCity 311
7/15/20266548 N NIXON AVENorwood Park41Completed2 daysInternetCity 311
9/3/20253151 W ARGYLE STAlbany Park33Completed2 daysInternetCity 311
4/29/20262128 N WINCHESTER AVELogan Square32Completed2 daysInternetCity 311
11/12/20251440 W BARRY AVELake View32Completed2 daysPhone CallCity 311
3/28/20263422 N BOSWORTH AVELake View47Completed2 daysInternetCity 311
10/29/20254124 N LEAMINGTON AVEPortage Park38Completed2 daysInternetCity 311
6/2/20263232 W CORTEZ STHumboldt Park26Completed2 daysPhone CallCity 311
6/8/20264420 W DIVERSEY AVEHermosa31Completed2 daysAlderman's OfficeCity 311
5/13/20263744 N FREMONT STLake View46Completed2 daysInternetCity 311
6/29/20268425 S HONORE STAuburn Gresham18Completed2 daysPhone CallCity 311
10/21/20254522 W DEMING PLHermosa31Completed2 daysPhone CallCity 311
3/28/20263415 S RACINE AVEBridgeport11Completed2 daysMobile DeviceCity 311
1/21/20263512 W 12TH PLNorth Lawndale24Completed2 daysPhone CallCity 311
3/31/20262414 W 35TH STMcKinley Park12Completed2 daysMobile DeviceCity 311
1/26/20269126 S WABASH AVERoseland6Completed2 daysInternetCity 311
12/10/20255442 N WESTERN AVELincoln Square40Completed2 daysInternetCity 311
11/10/202510259 S BENSLEY AVESouth Deering7Completed2 daysPhone CallCity 311
11/1/20259121 S MACKINAW AVESouth Chicago10Completed2 daysMobile DeviceCity 311
8/11/20262736 S HOMAN AVESouth Lawndale22Completed2 daysPhone CallCity 311
1/26/20262312 W WALTON STWest Town36Completed2 daysPhone CallCity 311
12/13/20253115 N MONTICELLO AVEAvondale35Completed2 daysInternetCity 311
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