RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4675 locations in the last 30 days (4832 reports) · Last sighting 17 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/22/20265124 S CARPENTER STNew City20Completed1 dayPhone CallCity 311
2/18/20264606 N DOVER STUptown46Completed1 dayPhone CallCity 311
12/7/20251529 W 19TH STLower West Side25Completed1 dayMobile DeviceCity 311
3/19/2026626 N TRUMBULL AVEHumboldt Park27Completed1 dayPhone CallCity 311
2/3/20261422 S AVERS AVENorth Lawndale24Completed1 dayInternetCity 311
4/14/2026316 W 27TH STArmour Square11Completed1 dayInternetCity 311
1/14/20263222 W GRACE STIrving Park33Completed1 dayInternetCity 311
12/11/20254044 W NELSON STAvondale31Completed1 dayPhone CallCity 311
3/24/20262624 N MONTICELLO AVELogan Square35Completed1 dayPhone CallCity 311
2/3/20265754 W 64TH PLClearing13Completed1 dayInternetCity 311
4/14/2026318 W 27TH STArmour Square11Completed1 dayInternetCity 311
4/6/20265109 W ALTGELD STBelmont Cragin31Completed1 dayPhone CallCity 311
5/5/20263044 N CENTRAL PARK AVEAvondale35Completed1 dayMobile DeviceCity 311
4/14/2026320 W 27TH STArmour Square11Completed1 dayInternetCity 311
12/4/20256454 N BOSWORTH AVERogers Park49Completed1 dayPhone CallCity 311
8/6/202610327 S ARTESIAN AVEBeverly19Completed1 dayPhone CallCity 311
1/21/20261520 S WABASH AVENear South Side3Completed1 dayInternetCity 311
6/11/2026622 W 44TH STNew City15Completed1 dayPhone CallCity 311
10/22/20256327 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
8/5/20264115 N RIDGEWAY AVEIrving Park33Completed1 dayPhone CallCity 311
8/25/2026260 W 24TH STArmour Square11Completed1 dayPhone CallCity 311
12/28/202530 W 18TH STNear South Side3Completed1 dayInternetCity 311
5/7/20261141 W NORTH SHORE AVERogers Park49Completed1 dayMobile DeviceCity 311
3/4/20262450 N HAMLIN AVELogan Square35Completed1 dayAlderman's OfficeCity 311
10/1/20251406 S LAKE SHORE DR SBNear South Side4Completed1 dayInternetCity 311
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