RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4606 locations in the last 30 days (4759 reports) · Last sighting 2 days 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/21/20261620 S KILDARE AVENorth Lawndale24Completed2 daysPhone CallCity 311
10/23/20251620 S MICHIGAN AVENear South Side3Completed4 daysInternetCity 311
7/29/20261620 S MICHIGAN AVENear South Side3Completed12 daysPhone CallCity 311
8/14/20251620 W ADDISON STLake View47Completed11 daysPhone CallCity 311
9/26/20251620 W ADDISON STLake View47Completed10 daysPhone CallCity 311
3/4/20261620 W ADDISON STLake View47Completed1 dayAlderman's OfficeCity 311
9/1/20261620 W AUGUSTA BLVDWest Town1Completed14 daysInternetCity 311
7/10/20261620 W CATALPA AVEEdgewater40Completed5 daysInternetCity 311
6/7/20261620 W FARWELL AVERogers Park49Completed2 daysPhone CallCity 311
9/8/20261620 W SUNNYSIDE AVEUptown47Completed14 daysMobile DeviceCity 311
7/6/20261620 W SUNNYSIDE AVEUptown47Completed8 daysMobile DeviceCity 311
6/8/20261620 W SUNNYSIDE AVEUptown47Completed7 daysMobile DeviceCity 311
11/19/20251620 W SUNNYSIDE AVEUptown47Completed0 daysMobile DeviceCity 311
9/15/20251620 W THOME AVEEdgewater40Completed8 daysMobile DeviceCity 311
11/25/20251621 E 85TH PLAvalon Park8Completed7 daysMobile DeviceCity 311
8/25/20261621 N BELL AVEWest Town32Completed15 daysMobile DeviceCity 311
9/22/20261621 N HUMBOLDTWest Town26Completed10 daysPhone CallCity 311
7/3/20261621 N HUMBOLDT BLVDWest Town26Completed10 daysPhone CallCity 311
9/7/20261621 N HUMBOLDT BLVDWest Town26Completed14 daysPhone CallCity 311
9/19/20251621 N HUMBOLDT BLVDWest Town26Completed10 daysMobile DeviceCity 311
7/28/20261621 N HUMBOLDT BLVDWest Town26Completed10 daysPhone CallCity 311
7/17/20261621 N HUMBOLDT BLVDWest Town26Completed11 daysPhone CallCity 311
7/15/20261621 N HUMBOLDT BLVDWest Town26Completed13 daysAlderman's OfficeCity 311
8/18/20261621 N KEATING AVEAustin37Completed15 daysMobile DeviceCity 311
9/3/20251621 N KEDZIE AVEHumboldt Park26Completed12 daysPhone CallCity 311
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