RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4494 locations in the last 30 days (4661 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/2026933 N ASHLAND AVEWest Town1Completed11 daysInternetCity 311
6/18/2026933 E 46TH STKenwood4Completed5 daysInternetCity 311
7/17/20269339 S MAY STWashington Heights21Completed11 daysInternetCity 311
8/22/20259339 S CHAPPEL AVECalumet Heights7Completed5 daysPhone CallCity 311
11/24/20259339 S CHAPPEL AVECalumet Heights7Completed2 daysPhone CallCity 311
10/20/20259336 S JUSTINE STWashington Heights21Completed2 daysPhone CallCity 311
8/2/20269335 S LAFLIN STWashington Heights21Completed12 daysPhone CallCity 311
6/11/20269333 S EVANS AVEChatham8Completed0 daysInternetCity 311
8/4/20259333 S EVANS AVEChatham8Completed8 daysInternetCity 311
4/30/20269333 S ESCANABA AVECalumet Heights10Completed4 daysInternetCity 311
9/16/20259332 S ESCANABA AVECalumet Heights7Completed13 daysMobile DeviceCity 311
9/13/20269332 S ESCANABA AVECalumet Heights7Open—Mobile DeviceCity 311
11/4/20259332 S AVALON AVEBurnside8Completed6 daysInternetCity 311
6/5/20269332 S AVALON AVEBurnside8Completed3 daysInternetCity 311
5/19/20269332 S AVALON AVEBurnside8Completed1 dayInternetCity 311
7/29/20269330 S JUSTINE STWashington Heights21Completed7 daysPhone CallCity 311
9/17/2025932 N WINCHESTER AVEWest Town36Completed12 daysInternetCity 311
9/10/2026932 N RIDGEWAY AVEHumboldt Park27Completed7 daysMobile DeviceCity 311
4/7/2026932 N CALIFORNIA AVEWest Town26Completed1 dayInternetCity 311
8/16/2026932 N CALIFORNIA AVEWest Town26Completed9 daysMobile DeviceCity 311
2/15/2026932 N CALIFORNIA AVEWest Town26Completed1 dayMobile DeviceCity 311
6/30/2026932 N CALIFORNIA AVEWest Town26Completed7 daysMobile DeviceCity 311
5/1/2026932 N CALIFORNIA AVEWest Town26Completed4 daysMobile DeviceCity 311
11/28/2025932 N CALIFORNIA AVEWest Town26Completed3 daysInternetCity 311
9/12/2025932 N CALIFORNIA AVEWest Town26Completed13 daysMobile DeviceCity 311
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