RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4698 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.

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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/28/20261710 E 77TH STSouth Shore8Completed4 daysMobile DeviceCity 311
8/4/20257920 S RIDGELAND AVESouth Chicago8Completed7 daysPhone CallCity 311
8/27/20258235 S DREXEL AVEChatham8Completed6 daysPhone CallCity 311
4/27/20261249 E 95TH PLPullman8Completed1 dayPhone CallCity 311
7/27/20261741 E 92ND PLCalumet Heights8Completed7 daysPhone CallCity 311
6/8/20268914 S CHAPPEL AVECalumet Heights8Completed3 daysAlderman's OfficeCity 311
7/30/2025533 E 87TH STChatham8Completed6 daysInternetCity 311
8/15/2025740 E 92ND PLChatham8Completed12 daysInternetCity 311
7/22/20261400 E 71ST PLSouth Shore8Completed7 daysInternetCity 311
5/27/20268115 S HARPER AVEAvalon Park8Completed6 daysPhone CallCity 311
4/19/20267633 S EAST END AVESouth Shore8Completed2 daysMobile DeviceCity 311
8/20/20257638 S EUCLID AVESouth Shore8Completed7 daysInternetCity 311
7/30/20257500 S BLACKSTONE AVESouth Shore8Completed6 daysPhone CallCity 311
12/19/20257341 S DANTE AVESouth Shore8Completed3 daysPhone CallCity 311
8/13/20257943 S CLYDE AVESouth Chicago8Completed9 daysPhone CallCity 311
2/21/20261301 E 71ST PLSouth Shore8Completed2 daysInternetCity 311
3/2/20268142 S INGLESIDE AVEChatham8Completed2 daysPhone CallCity 311
1/21/20267544 S STONY ISLAND AVESouth Shore8Completed1 dayPhone CallCity 311
4/9/20267846 S GREENWOOD AVEGreater Grand Crossing8Completed1 dayInternetCity 311
8/19/20268356 S DREXEL AVEChatham8Completed5 daysPhone CallCity 311
8/14/20268301 S DREXEL AVEChatham8Completed10 daysPhone CallCity 311
10/8/20257941 S WOODLAWN AVEAvalon Park8Completed2 daysInternetCity 311
8/20/20268245 S DREXEL AVEChatham8Completed4 daysPhone CallCity 311
8/8/20268200 S ELLIS AVEChatham8Completed11 daysInternetCity 311
8/15/20251514 E 72ND STSouth Shore8Completed12 daysPhone CallCity 311
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