RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4512 locations in the last 30 days (4667 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
8/12/20252652 E 92ND STCalumet Heights7Completed10 daysInternetCity 311
9/25/20258451 S ESSEX AVESouth Chicago7Completed4 daysAlderman's OfficeCity 311
8/20/20252608 E 74TH PLSouth Shore7Completed7 daysPhone CallCity 311
8/22/20257919 S KINGSTON AVESouth Chicago7Completed5 daysPhone CallCity 311
9/23/20257400 S SOUTH SHORE DRSouth Shore7Completed6 daysPhone CallCity 311
8/19/202510259 S BENSLEY AVESouth Deering7Completed7 daysPhone CallCity 311
6/7/20268514 S PHILLIPS AVESouth Chicago7Completed3 daysInternetCity 311
6/6/202610201 S BENSLEY AVESouth Deering7Completed4 daysMobile DeviceCity 311
9/10/20268259 S BURLEY AVESouth Chicago7Completed14 daysPhone CallCity 311
9/24/20269322 S SAGINAW AVECalumet Heights7Open—InternetCity 311
9/19/20253021 E 80TH PLSouth Chicago7Completed10 daysAlderman's OfficeCity 311
7/16/20268204 S EXCHANGE AVESouth Chicago7Completed1 dayInternetCity 311
9/17/20268220 S BRANDON AVESouth Chicago7Open—Phone CallCity 311
11/13/20258344 S LUELLA AVESouth Chicago7Completed1 dayPhone CallCity 311
4/17/20267337 S YATES BLVDSouth Shore7Completed3 daysPhone CallCity 311
7/15/20267845 S KINGSTON AVESouth Shore7Completed1 dayInternetCity 311
9/3/20259027 S COLFAX AVECalumet Heights7Completed9 daysPhone CallCity 311
11/14/20257330 S RIDGELAND AVESouth Shore7Completed4 daysInternetCity 311
2/23/20267406 S CRANDON AVESouth Shore7Completed1 dayInternetCity 311
9/18/20268132 S BRANDON AVESouth Chicago7Open—Mobile DeviceCity 311
9/3/20252301 E 79TH STSouth Chicago7Completed9 daysPhone CallCity 311
4/22/202610331 S CRANDON AVESouth Deering7Completed1 dayPhone CallCity 311
12/31/20257523 S YATES BLVDSouth Shore7Completed2 daysInternetCity 311
9/13/20269332 S ESCANABA AVECalumet Heights7Completed12 daysMobile DeviceCity 311
12/12/20258501 S MARQUETTESouth Chicago7Completed3 daysSalesforce Mobile AppCity 311
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