RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4017 locations in the last 30 days (4190 reports) · Last sighting yesterday

📰 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.

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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.

📰 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20261838 W WARNER AVENorth Center47Completed14 daysPhone CallCity 311
7/29/20261838 W WARNER AVENorth Center47Completed12 daysPhone CallCity 311
11/2/20261838 W WARNER AVENorth Center47Completed11 daysAlderman's OfficeCity 311
5/16/20261838 W HURON STWest Town36Completed3 daysMobile DeviceCity 311
1/6/20261838 W CORTLAND STLogan Square32Completed0 daysMobile DeviceCity 311
10/22/20261838 W 46TH STNew City15Completed13 daysInternetCity 311
7/28/20261838 W 34TH STMcKinley Park11Completed8 daysInternetCity 311
8/8/20261838 W 34TH STMcKinley Park11Completed10 daysInternetCity 311
1/12/20261838 S MAY STLower West Side25Completed0 daysInternetCity 311
8/20/20261838 N SAWYER AVELogan Square26Completed13 daysMobile DeviceCity 311
3/3/20261838 N RICHMOND STLogan Square26Completed6 daysInternetCity 311
7/14/20261838 N MONTICELLO AVELogan Square26Completed10 daysInternetCity 311
10/3/20251838 N MONTICELLO AVELogan Square26Completed7 daysInternetCity 311
9/23/20261838 N MAUD AVELincoln Park43Completed12 daysInternetCity 311
10/14/20261838 N LINCOLN PARK WESTLincoln Park43Completed13 daysInternetCity 311
8/31/20251838 N DAMEN AVELogan Square32Completed8 daysMobile DeviceCity 311
10/1/20251838 N DAMEN AVELogan Square32Completed7 daysInternetCity 311
10/1/20251838 N DAMEN AVELogan Square32Completed7 daysMobile DeviceCity 311
3/10/20261837 W ROSCOE STNorth Center32Completed0 daysMobile DeviceCity 311
5/26/20261837 W LARCHMONT AVENorth Center47Completed2 daysInternetCity 311
9/11/20261837 W CUYLER AVENorth Center47Completed13 daysMobile DeviceCity 311
6/6/20261837 W BELLE PLAINE AVENorth Center47Completed3 daysMobile DeviceCity 311
8/17/20261837 W 34TH PLMcKinley Park11Completed11 daysInternetCity 311
7/8/20261837 S MILLARD AVENorth Lawndale24Completed9 daysPhone CallCity 311
7/16/20261837 S MILLARD AVENorth Lawndale24Completed1 dayPhone CallCity 311
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