RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4559 locations in the last 30 days (4714 reports) · Last sighting yesterday

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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.

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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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/25/2026825 W SHERIDAN RDLake View46Completed9 daysMobile DeviceCity 311
7/19/2026910 W LELAND AVEUptown46Completed8 daysMobile DeviceCity 311
7/14/2026648 W GRACE STLake View46Completed9 daysInternetCity 311
8/2/20254541 N MALDEN STUptown46Completed12 daysMobile DeviceCity 311
12/2/20253924 N SOUTHPORT AVELake View46Completed1 dayPhone CallCity 311
7/19/2026939 W WINDSOR AVEUptown46Completed8 daysInternetCity 311
5/22/20264643 N BROADWAYUptown46Completed4 daysAlderman's OfficeCity 311
8/15/2026913 W IRVING PARK RDLake View46Completed17 daysInternetCity 311
11/26/2025936 W LELAND AVEUptown46Completed6 daysMobile DeviceCity 311
7/16/2026815 W BRADLEY PLLake View46Completed11 daysInternetCity 311
11/26/20253740 N HALSTED STLake View46Completed6 daysInternetCity 311
8/25/20254040 N SHERIDAN RDUptown46Completed8 daysAlderman's OfficeCity 311
3/31/2026531 W ADDISON STLake View46Completed1 dayInternetCity 311
8/28/2025924 W CULLOM AVEUptown46Completed1 dayPhone CallCity 311
8/22/2025850 W IRVING PARK RDUptown46Completed11 daysInternetCity 311
12/2/20254442 N DOVER STUptown46Completed0 daysInternetCity 311
3/31/20263930 N SOUTHPORT AVELake View46Completed1 dayInternetCity 311
3/2/20264506 N CLARENDON AVEUptown46Completed1 dayMobile DeviceCity 311
8/13/20264726 N DOVER STUptown46Completed11 daysInternetCity 311
5/7/2026755 W BROMPTON AVELake View46Completed1 dayMobile DeviceCity 311
9/24/2026861 W LAKESIDE PLUptown46Open—Mobile DeviceCity 311
4/15/20263808 N PINE GROVE AVELake View46Completed1 dayMobile DeviceCity 311
5/22/20264030 N CLARENDON AVEUptown46Completed6 daysInternetCity 311
7/7/20263755 N PINE GROVE AVELake View46Completed6 daysMobile DeviceCity 311
8/2/20254413 N MAGNOLIA AVEUptown46Completed12 daysPhone CallCity 311
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