RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4587 locations in the last 30 days (4752 reports) · Last sighting 11 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/202610524 S VERNON AVERoseland9Completed1 dayPhone CallCity 311
8/28/202610524 S VERNON AVERoseland9Completed14 daysPhone CallCity 311
9/7/202510525 S CORLISS AVEPullman9Completed11 daysPhone CallCity 311
9/9/202610525 S PROSPECT AVEBeverly19Completed7 daysInternetCity 311
9/24/202610526 S EMERALD AVERoseland21Open—Phone CallCity 311
9/20/202610526 S SACRAMENTO AVEMount Greenwood19Open—Mobile DeviceCity 311
9/16/202510528 S EGGLESTON AVERoseland21Completed7 daysPhone CallCity 311
7/10/202610528 S MAPLEWOOD AVEBeverly19Completed11 daysInternetCity 311
8/22/202510529 S CLAREMONT AVEBeverly19Completed12 daysMobile DeviceCity 311
9/8/202510529 S FOREST AVERoseland9Completed9 daysPhone CallCity 311
9/24/20261052 N LEAMINGTON AVEAustin37Open—InternetCity 311
9/26/20251052 N RIDGEWAY AVEHumboldt Park27Completed10 daysInternetCity 311
8/4/20251052 W FULTON MARKETNear West Side27Completed9 daysPhone CallCity 311
12/18/20251052 W ROSEMONT AVEEdgewater48Completed1 dayInternetCity 311
10/16/20251052 W ROSEMONT AVEEdgewater48Completed5 daysInternetCity 311
7/4/202610530 S HAMLIN AVEMount Greenwood19Completed2 daysPhone CallCity 311
6/25/202610530 S WABASH AVERoseland9Completed7 daysMobile DeviceCity 311
3/19/202610531 S ALBANY AVEMount Greenwood19Completed1 dayAlderman's OfficeCity 311
7/13/202610531 S ALBANY AVEMount Greenwood19Completed8 daysInternetCity 311
6/9/202610531 S MORGAN STWashington Heights21Completed1 dayPhone CallCity 311
8/17/202610532 S HOYNE AVEBeverly19Completed10 daysPhone CallCity 311
4/10/202610533 S CLAREMONT AVEBeverly19Completed3 daysMobile DeviceCity 311
11/17/202510533 S STATE STRoseland9Completed1 dayPhone CallCity 311
8/3/202610534 S LOWE AVERoseland21Completed11 daysPhone CallCity 311
8/3/202610534 S LOWE AVERoseland21Completed11 daysPhone CallCity 311
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