RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4382 locations in the last 30 days (4544 reports) · Last sighting 24 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/7/2026822 N CALIFORNIA AVEWest Town36Completed5 daysInternetCity 311
10/15/2025822 N CALIFORNIA AVEWest Town36Completed1 dayPhone CallCity 311
9/7/2025822 N CALIFORNIA AVEWest Town36Completed10 daysInternetCity 311
4/21/2026822 E 42ND STOakland4Completed0 daysInternetCity 311
4/28/20268229 S RHODES AVEChatham6Completed2 daysMobile DeviceCity 311
9/19/20268228 S ELLIS AVEChatham8Open—Phone CallCity 311
10/6/20258228 S CHRISTIANA AVEAshburn18Completed3 daysPhone CallCity 311
11/25/20258228 S ASHLAND AVEAuburn Gresham17Completed3 daysInternetCity 311
6/30/20268228 S ASHLAND AVEAuburn Gresham17Completed7 daysInternetCity 311
8/4/20268227 S WABASH AVEChatham6Completed6 daysMobile DeviceCity 311
11/4/20258227 S WABASH AVEChatham6Completed2 daysPhone CallCity 311
7/13/20268227 S SAWYER AVEAshburn18Completed10 daysInternetCity 311
3/17/20268226 S KOMENSKY AVEAshburn18Completed1 dayInternetCity 311
8/4/20258225 S RHODES AVEChatham6Completed7 daysPhone CallCity 311
9/8/20268225 S LAFLIN STAuburn Gresham17Completed15 daysMobile DeviceCity 311
3/8/20268225 S LAFLIN STAuburn Gresham17Completed1 dayMobile DeviceCity 311
9/8/20258225 S KENWOOD AVEAvalon Park8Completed10 daysInternetCity 311
7/29/20268224 S WINCHESTER AVEAuburn Gresham17Completed7 daysPhone CallCity 311
4/20/20268224 S MARQUETTE AVESouth Chicago7Completed2 daysPhone CallCity 311
10/9/20258223 S GREEN STAuburn Gresham17Completed11 daysPhone CallCity 311
4/20/20268222 S MARQUETTE AVESouth Chicago7Completed2 daysPhone CallCity 311
4/16/20268222 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
8/19/20258222 S HERMITAGE AVEAuburn Gresham17Completed8 daysPhone CallCity 311
10/14/20258222 S CHAPPEL AVESouth Chicago8Completed7 daysAlderman's OfficeCity 311
11/21/20258222 S ARTESIAN AVEAshburn18Completed4 daysInternetCity 311
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