RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3999 locations in the last 30 days (4177 reports) · Last sighting 17 hours ago

📰 Blog
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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.

📰 This week’s rat recap

Weekly Rat Trends — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 days on average to resolve a complaint
Read the full recap →

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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/13/20265837 N MULLIGAN AVENorwood Park45Completed1 dayInternetCity 311
11/20/20256458 S LAFLIN STWest Englewood16Completed1 dayInternetCity 311
9/22/20265009 S PRINCETON AVEFuller Park20Completed1 dayPhone CallCity 311
12/9/20252113 N CLARK STLincoln Park43Completed1 dayPhone CallCity 311
3/31/20261352 W TOUHY AVERogers Park49Completed1 dayMobile DeviceCity 311
6/17/20263715 N MOZART STIrving Park35Completed1 dayMobile DeviceCity 311
9/25/20252538 W AINSLIE STLincoln Square40Completed1 dayPhone CallCity 311
3/26/2026731A S RACINE AVENear West Side34Completed1 dayPhone CallCity 311
4/19/20267538 N RIDGE BLVDWest Ridge49Completed1 dayInternetCity 311
3/18/20262917 N KENNETH AVEHermosa31Completed1 dayInternetCity 311
4/19/20264446 N HERMITAGE AVEUptown47Completed1 dayInternetCity 311
12/30/20251801 N MOZART STLogan Square26Completed1 dayInternetCity 311
4/6/20261411 E 53RD STHyde Park5Completed1 dayMobile DeviceCity 311
7/6/20261229 S AVERS AVENorth Lawndale24Completed1 dayPhone CallCity 311
11/4/20251839 S MAY STLower West Side25Completed1 dayPhone CallCity 311
5/18/20267300 N PAULINA STRogers Park49Completed1 dayPhone CallCity 311
1/21/20267161 W ARMITAGE AVEAustin29Completed1 dayAlderman's OfficeCity 311
6/2/20265271 N NORTHWEST HWYJefferson Park45Completed1 dayPhone CallCity 311
2/9/20262352 W RICE STWest Town36Completed1 dayInternetCity 311
8/12/20262036 N RACINE AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
5/4/20262052 N HALSTED STLincoln Park43Completed1 dayAlderman's OfficeCity 311
5/4/20261839 S MAY STLower West Side25Completed1 dayPhone CallCity 311
10/16/20252651 W RASCHER AVELincoln Square40Completed1 dayPhone CallCity 311
6/22/20263212 S RACINE AVEBridgeport11Completed1 dayInternetCity 311
7/29/20266010 W WAVELAND AVEDunning38Completed1 dayMobile DeviceCity 311
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