RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4459 locations in the last 30 days (4624 reports) · Last sighting 9 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/1/20263325 N KEATING AVEPortage Park30Completed2 daysMobile DeviceCity 311
5/9/20263683 N ELSTON AVEIrving Park33Completed2 daysMobile DeviceCity 311
11/17/20257505 N SHERIDAN RDRogers Park49Completed2 daysPhone CallCity 311
10/14/20258621 S MICHIGAN AVEChatham6Completed2 daysPhone CallCity 311
4/19/20268613 W FOSTER AVEO'Hare41Completed2 daysInternetCity 311
9/24/20254151 S ARTESIAN AVEBrighton Park12Completed2 daysAlderman's OfficeCity 311
2/21/20269351 S DR MARTIN LUTHER KING JR DRRoseland8Completed2 daysPhone CallCity 311
6/1/20267321 S HERMITAGE AVEWest Englewood17Completed2 daysPhone CallCity 311
11/18/20254340 N MASON AVEPortage Park38Completed2 daysPhone CallCity 311
10/27/20256829 S CORNELL AVESouth Shore5Completed2 daysPhone CallCity 311
8/13/20256741 S SANGAMON STEnglewood16Completed2 daysInternetCity 311
4/20/2026922 E 81ST STChatham8Completed2 daysAlderman's OfficeCity 311
4/27/20262641 W PETERSON AVEWest Ridge40Completed2 daysMobile DeviceCity 311
11/3/20255116 S WABASH AVEWashington Park3Completed2 daysPhone CallCity 311
12/24/2025255 W SWANN STFuller Park20Completed2 daysPhone CallCity 311
12/31/20251739 N NATCHEZ AVEAustin29Completed2 daysPhone CallCity 311
5/2/20264416 N MASON AVEPortage Park38Completed2 daysMobile DeviceCity 311
2/7/20264417 S ARTESIAN AVEBrighton Park15Completed2 daysMobile DeviceCity 311
3/21/20263236 N NOTTINGHAM AVEDunning29Completed2 daysInternetCity 311
11/23/20255000 N MCVICKER AVEJefferson Park45Completed2 daysMobile DeviceCity 311
4/14/20261523 W MONTANA STLincoln Park32Completed2 daysInternetCity 311
9/28/20253145 N RACINE AVELake View44Completed2 daysPhone CallCity 311
11/24/20256243 S PARKSIDE AVEClearing13Completed2 daysInternetCity 311
3/10/20261142 W WOLFRAM STLake View44Completed2 daysInternetCity 311
2/16/20262003 W 35TH STMcKinley Park12Completed2 daysInternetCity 311
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