RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4616 locations in the last 30 days (4797 reports) · Last sighting 12 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.

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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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/30/20261400 E 71ST PLSouth Shore8Completed2 daysPhone CallCity 311
3/28/20261710 E 77TH STSouth Shore8Completed4 daysMobile DeviceCity 311
11/2/20257843 S MARQUETTE AVESouth Shore7Completed1 dayMobile DeviceCity 311
11/2/20257845 S KINGSTON AVESouth Shore7Completed1 dayMobile DeviceCity 311
10/28/20251537 E 73RD STSouth Shore7Completed6 daysPhone CallCity 311
3/11/20261633 E 67TH STSouth Shore5Completed2 daysPhone CallCity 311
3/31/20267441 S CHAPPEL AVESouth Shore7Completed1 dayPhone CallCity 311
2/25/20261703 E 67TH STSouth Shore5Completed0 daysPhone CallCity 311
10/16/20267532 S DORCHESTER AVESouth Shore8Open—Alderman's OfficeCity 311
3/31/20267401 S CHAPPEL AVESouth Shore7Completed1 dayPhone CallCity 311
2/25/20261633 E 67TH STSouth Shore5Completed0 daysPhone CallCity 311
8/9/20257804 S KINGSTON AVESouth Shore7Completed4 daysMobile DeviceCity 311
11/19/20257654 S CREGIER AVESouth Shore8Completed1 dayPhone CallCity 311
11/19/20257341 S DANTE AVESouth Shore8Completed1 dayPhone CallCity 311
2/18/20266700 S CORNELL AVESouth Shore5Completed5 daysPhone CallCity 311
7/6/20267434 S CHAPPEL AVESouth Shore7Completed2 daysMobile DeviceCity 311
3/10/20266700 S CORNELL AVESouth Shore5Completed3 daysPhone CallCity 311
3/30/20267321 S CONSTANCE AVESouth Shore7Completed1 dayInternetCity 311
9/7/20257359 S OGLESBY AVESouth Shore7Completed9 daysInternetCity 311
10/14/20267748 S ESSEX AVESouth Shore7Completed5 daysPhone CallCity 311
9/12/20257549 S CREGIER AVESouth Shore8Completed11 daysPhone CallCity 311
9/4/20261744 E 73RD PLSouth Shore7Completed5 daysAlderman's OfficeCity 311
9/4/20261737 E 73RD PLSouth Shore7Completed5 daysAlderman's OfficeCity 311
10/23/20257519 S YATES BLVDSouth Shore7Completed4 daysPhone CallCity 311
8/13/20257100 S JEFFERY BLVDSouth Shore5Completed1 dayPhone CallCity 311
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