RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4453 locations in the last 30 days (4617 reports) · Last sighting 12 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
5/21/20268300 S MORGAN STAuburn Gresham17Completed1 dayPhone CallCity 311
7/29/20268300 S LOOMIS STAuburn Gresham18Completed7 daysPhone CallCity 311
8/6/20268300 S DREXEL AVEChatham8Completed13 daysAlderman's OfficeCity 311
5/12/20268300 S DREXEL AVEChatham8Completed3 daysInternetCity 311
2/16/20268300 S COTTAGE GROVE AVEChatham6Completed1 dayInternetCity 311
8/26/20258300 S COTTAGE GROVE AVEChatham6Completed3 daysMobile DeviceCity 311
8/26/20258300 S BUFFALO AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
5/4/20268300 S BRANDON AVESouth Chicago10Completed1 dayPhone CallCity 311
5/1/20268300 S BRANDON AVESouth Chicago10Completed3 daysAlderman's OfficeCity 311
8/17/2025829 W NEWPORT AVELake View44Completed16 daysMobile DeviceCity 311
1/7/2026829 W LAKESIDE PLUptown46Completed1 dayMobile DeviceCity 311
7/30/2025829 W ALTGELD STLincoln Park43Completed8 daysInternetCity 311
8/13/2025829 W ALTGELD STLincoln Park43Completed9 daysInternetCity 311
2/11/2026829 N WESTERN AVEWest Town36Completed1 dayMobile DeviceCity 311
6/11/2026829 N LONG AVEAustin37Completed4 daysPhone CallCity 311
7/12/2026828 W WAVELAND AVELake View46Completed1 dayMobile DeviceCity 311
8/22/2026828 W WAVELAND AVELake View46Completed12 daysMobile DeviceCity 311
9/15/2026828 W LELAND AVEUptown46Open—Phone CallCity 311
8/25/2025828 W 35TH STBridgeport11Completed9 daysMobile DeviceCity 311
11/5/2025828 N WINCHESTER AVEWest Town36Completed1 dayMobile DeviceCity 311
5/12/2026828 N WINCHESTER AVEWest Town36Completed2 daysInternetCity 311
7/6/2026828 N MASSASOIT AVEAustin29Completed8 daysAlderman's OfficeCity 311
1/4/2026828 N KOLIN AVEHumboldt Park37Completed1 dayInternetCity 311
7/8/2026828 N KEDVALE AVEHumboldt Park37Completed9 daysPhone CallCity 311
2/19/2026828 N HERMITAGE AVEWest Town1Completed1 dayInternetCity 311
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