RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4590 locations in the last 30 days (4747 reports) · Last sighting 21 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/29/20263400 N BOSWORTH AVELake View47Completed1 dayPhone CallCity 311
2/15/2026922 N HERMITAGE AVEWest Town1Completed1 dayInternetCity 311
11/17/20251200 W RANDOLPH STNear West Side27Completed1 dayInternetCity 311
3/9/20265537 S WOLCOTT AVEWest Englewood16Completed1 dayPhone CallCity 311
6/16/20264211 W MADISON STWest Garfield Park28Completed1 dayPhone CallCity 311
11/5/2025828 N WINCHESTER AVEWest Town36Completed1 dayMobile DeviceCity 311
2/9/20261751 W ALBION AVERogers Park40Completed1 dayPhone CallCity 311
2/23/20267509 S GREEN STAuburn Gresham17Completed1 dayInternetCity 311
12/4/20252350 W MOFFAT STLogan Square32Completed1 dayMobile DeviceCity 311
1/8/2026854 N LAWNDALEHumboldt Park27Completed1 daySalesforce Mobile AppCity 311
12/17/20253035 S BONFIELD STBridgeport11Completed1 dayPhone CallCity 311
9/3/2025933 N STATE STNear North Side42Completed1 dayPhone CallCity 311
4/21/20265000 W GRACE STPortage Park30Completed1 dayPhone CallCity 311
4/14/20261935 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
3/25/20265316 S GREENWOOD AVEHyde Park5Completed1 dayMobile DeviceCity 311
8/11/20263304 W LEXINGTON STEast Garfield Park24Completed1 dayPhone CallCity 311
8/17/202610119 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
7/23/20263019 W SHERWIN AVEWest Ridge50Completed1 dayPhone CallCity 311
3/2/20261246 W 50TH STNew City20Completed1 dayInternetCity 311
12/10/20254914 N MILWAUKEE AVEJefferson Park45Completed1 dayPhone CallCity 311
6/15/20262207 W IOWA STWest Town36Completed1 dayInternetCity 311
3/17/20264175 W NELSON STAvondale31Completed1 dayPhone CallCity 311
4/15/20267717 W HORTENSE AVENorwood Park41Completed1 dayInternetCity 311
3/30/20266423 S LAMON AVEClearing13Completed1 dayInternetCity 311
5/7/20267327 N DAMEN AVERogers Park49Completed1 dayPhone CallCity 311
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