RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4469 locations in the last 30 days (4615 reports) · Last sighting 2 days 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.

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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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20256945 S MICHIGAN AVEGreater Grand Crossing6Completed10 daysMobile DeviceCity 311
8/6/20266945 S MICHIGAN AVEGreater Grand Crossing6Completed13 daysMobile DeviceCity 311
8/19/20266945 S MICHIGAN AVEGreater Grand Crossing6Completed9 daysPhone CallCity 311
5/12/20266945 S MAY STEnglewood16Completed1 dayPhone CallCity 311
10/14/20256945 S BELL AVEChicago Lawn17Completed7 daysPhone CallCity 311
12/22/20256943 W DIVERSEY AVEMontclare36Completed1 dayMobile DeviceCity 311
2/25/20266943 W DIVERSEY AVEMontclare36Completed1 dayMobile DeviceCity 311
7/4/20266943 W DIVERSEY AVEMontclare36Completed9 daysMobile DeviceCity 311
9/16/20266943 W DIVERSEY AVEMontclare36Completed12 daysMobile DeviceCity 311
8/18/20266943 W 63RD STClearing13Completed9 daysPhone CallCity 311
12/23/20256943 S DAMEN AVEWest Englewood17Completed1 dayPhone CallCity 311
3/9/20266943 S DAMEN AVEWest Englewood17Completed2 daysPhone CallCity 311
3/30/20266942 S STONY ISLAND AVESouth Shore5Completed1 dayMobile DeviceCity 311
10/3/20256942 S PAULINA STWest Englewood17Completed11 daysPhone CallCity 311
5/18/20266942 S MICHIGAN AVEGreater Grand Crossing6Completed2 daysMobile DeviceCity 311
8/20/20256942 S CALUMET AVEGreater Grand Crossing6Completed6 daysMobile DeviceCity 311
8/30/20266942 S ADA STWest Englewood17Completed15 daysInternetCity 311
8/8/20256942 N OLCOTT AVEEdison Park41Completed3 daysPhone CallCity 311
9/11/20256942 N OLCOTT AVEEdison Park41Completed1 dayPhone CallCity 311
3/26/20266941 S RACINE AVEEnglewood16Completed4 daysMobile DeviceCity 311
9/3/20266941 S PULASKI RDWest Lawn23Completed12 daysPhone CallCity 311
8/3/20256941 S MICHIGAN AVEGreater Grand Crossing6Completed11 daysInternetCity 311
11/10/20256941 S ABERDEEN STEnglewood16Completed3 daysPhone CallCity 311
1/22/20266940 S WABASH AVEGreater Grand Crossing6Completed1 dayInternetCity 311
7/16/20266940 S CLYDE AVESouth Shore5Completed8 daysPhone CallCity 311
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