RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4669 locations in the last 30 days (4827 reports) · Last sighting 16 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
7/28/20251219 N CALIFORNIA AVEWest Town26Completed9 daysInternetCity 311
3/10/20261219 N NOBLE STWest Town1Completed2 daysAlderman's OfficeCity 311
8/14/20251219 N NOBLE STWest Town1Completed8 daysMobile DeviceCity 311
3/6/20261219 N NOBLE STWest Town1Completed4 daysPhone CallCity 311
2/28/20261219 N WELLS STNear North Side2Completed4 daysMobile DeviceCity 311
7/2/20261219 N WELLS STNear North Side2Completed7 daysInternetCity 311
8/11/20261219 S ST LOUIS AVENorth Lawndale24Completed1 dayPhone CallCity 311
9/11/20261219 S ST LOUIS AVENorth Lawndale24Completed12 daysPhone CallCity 311
9/22/20251219 W FARWELL AVERogers Park49Completed1 dayPhone CallCity 311
8/5/20251219 W FARWELL AVERogers Park49Completed1 dayPhone CallCity 311
9/24/20251219 W GEORGE STLake View32Completed8 daysAlderman's OfficeCity 311
9/14/20251219 W GEORGE STLake View32Completed11 daysInternetCity 311
9/18/20251219 W GREENLEAF AVERogers Park49Completed8 daysInternetCity 311
8/26/20251219 W GREENLEAF AVERogers Park49Completed9 daysInternetCity 311
9/26/20261219 W LAWRENCE AVEUptown46Open—InternetCity 311
7/20/20261219 W NEWPORT AVELake View44Completed9 daysInternetCity 311
7/9/2026121 E 78TH STGreater Grand Crossing6Completed6 daysInternetCity 311
9/29/2025121 E BALBO DRLoop4Completed2 daysInternetCity 311
2/24/2026121 N KILBOURN AVEWest Garfield Park28Completed1 dayInternetCity 311
6/27/2026121 W CHESTNUT STNear North Side2Completed9 daysInternetCity 311
10/4/2025121 W CHESTNUT STNear North Side2Completed6 daysInternetCity 311
10/17/2025121 W CHESTNUT STNear North Side2Completed5 daysInternetCity 311
5/11/202612200 S EGGLESTON AVEWest Pullman21Completed3 daysPhone CallCity 311
3/31/202612200 S ELIZABETH STWest Pullman21Completed1 dayPhone CallCity 311
10/13/202512200 S LAFAYETTE AVEWest Pullman9Completed2 daysInternetCity 311
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