RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4532 locations in the last 30 days (4701 reports) · Last sighting 18 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.

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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20268201 S DOBSON AVEChatham8Open—Alderman's OfficeCity 311
9/14/20269445 S LA SALLE STRoseland9Open—Phone CallCity 311
9/15/20263514 N BELL AVENorth Center32Open—Phone CallCity 311
9/14/20264129 W CERMAK RDNorth Lawndale22Open—Phone CallCity 311
9/15/20263802 W CORNELIA AVEAvondale30Open—Phone CallCity 311
9/13/20262057 N OAKLEY AVELogan Square32Open—InternetCity 311
9/14/20268139 S PAXTON AVESouth Chicago8Open—Alderman's OfficeCity 311
9/15/20263920 N CALIFORNIA AVEIrving Park35Open—InternetCity 311
9/13/20265459 W BERENICE AVEPortage Park30Open—InternetCity 311
9/15/20261224 S SPRINGFIELD AVENorth Lawndale24Open—InternetCity 311
9/14/20265608 N KEYSTONE AVENorth Park39Open—Alderman's OfficeCity 311
9/13/20263728 N NEWLAND AVEDunning38Open—Mobile DeviceCity 311
9/15/20261049 N LECLAIRE AVEAustin37Open—Phone CallCity 311
9/15/20265600 S SEELEY AVEWest Englewood15Open—Phone CallCity 311
9/14/20265524 S KOSTNER AVEWest Elsdon13Open—Phone CallCity 311
9/14/20265649 W PATTERSON AVEPortage Park38Open—Mobile DeviceCity 311
9/14/20265100 W PATTERSON AVEPortage Park30Open—Phone CallCity 311
9/14/20263101 W WABANSIA AVEHumboldt Park26Open—InternetCity 311
9/15/20263719 N BROADWAY STLake View46Open—Mobile DeviceCity 311
9/14/20262142 W HOMER STLogan Square32Open—Phone CallCity 311
9/14/20264320 N WOLCOTT AVENorth Center47Open—Phone CallCity 311
9/14/20261412 W BERTEAU AVELake View47Open—Phone CallCity 311
9/14/20263542 N FREMONT STLake View44Open—Mobile DeviceCity 311
9/14/20265558 S MASSASOIT AVEGarfield Ridge13Open—Mobile DeviceCity 311
9/16/20262500 N KEELER AVEHermosa31Open—Mobile DeviceCity 311
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