RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4515 locations in the last 30 days (4670 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.

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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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/12/20259805 S CALHOUN AVESouth Deering7Completed10 daysInternetCity 311
4/13/20267526 S PHILLIPS AVESouth Shore7Completed2 daysInternetCity 311
4/27/20263021 E 83RD STSouth Chicago7Completed1 dayMobile DeviceCity 311
8/12/20259945 S BENSLEY AVESouth Deering7Completed2 daysPhone CallCity 311
4/27/20268220 S BRANDON AVESouth Chicago7Completed1 dayInternetCity 311
8/14/20259626 S HOXIE AVESouth Deering7Completed8 daysAlderman's OfficeCity 311
5/1/20267345 S SOUTH SHORE DRSouth Shore7Completed3 daysMobile DeviceCity 311
10/13/20259953 S YATES AVESouth Deering7Completed8 daysPhone CallCity 311
6/13/20263070 E 79TH STSouth Chicago7Completed2 daysMobile DeviceCity 311
10/16/20259019 S KINGSTON AVECalumet Heights7Completed5 daysPhone CallCity 311
9/10/20268259 S BURLEY AVESouth Chicago7Completed14 daysPhone CallCity 311
9/8/20268324 S ESSEX AVESouth Chicago7Completed1 dayPhone CallCity 311
8/27/20269321 S PAXTON AVECalumet Heights7Completed13 daysMobile DeviceCity 311
10/6/20252411 E 93RD STCalumet Heights7Completed4 daysPhone CallCity 311
10/16/20259022 S KINGSTON AVECalumet Heights7Completed5 daysPhone CallCity 311
9/3/20268145 S SOUTH SHORE DRSouth Chicago7Completed6 daysPhone CallCity 311
4/30/20263021 E 83RD STSouth Chicago7Completed1 dayMobile DeviceCity 311
5/19/20262305 E 103RD STSouth Deering7Completed7 daysPhone CallCity 311
9/7/20268916 S LUELLA AVECalumet Heights7Completed2 daysPhone CallCity 311
10/16/20257450 S EUCLID PKWYSouth Shore7Completed5 daysPhone CallCity 311
3/31/20267441 S CHAPPEL AVESouth Shore7Completed1 dayPhone CallCity 311
9/8/20269916 S TORRENCE AVESouth Deering7Completed1 dayPhone CallCity 311
1/14/20269600 S MERRION AVESouth Deering7Completed1 dayMobile DeviceCity 311
8/18/20259123 S YATES AVECalumet Heights7Completed7 daysAlderman's OfficeCity 311
8/19/20252035 E 73RD STSouth Shore7Completed6 daysPhone CallCity 311
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