RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4254 locations in the last 30 days (4439 reports) · Last sighting 21 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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20252120 W ROSCOE STNorth Center32Completed16 daysInternetCity 311
11/17/20252940 N RIVERWALKLogan Square32Completed2 daysMobile DeviceCity 311
9/25/20251222 W DIVERSEY AVELake View32Completed11 daysInternetCity 311
9/25/20252628 N WAYNE AVELincoln Park32Completed11 daysInternetCity 311
10/3/20251222 W DIVERSEY PKWYLake View32Completed3 daysMobile DeviceCity 311
11/18/20252340 W NORTH AVEWest Town32Completed0 daysMobile DeviceCity 311
10/14/20262165 N WESTERN AVELogan Square32Completed14 daysAlderman's OfficeCity 311
8/27/20251345 W BARRY AVELake View32Completed9 daysPhone CallCity 311
1/1/20262741 N MARSHFIELD AVELincoln Park32Completed1 dayInternetCity 311
9/7/20251541 W BARRY AVELake View32Completed9 daysMobile DeviceCity 311
10/21/20252257 W FULLERTON AVELogan Square32Completed7 daysInternetCity 311
1/6/20263453 N LEAVITT STNorth Center32Completed0 daysMobile DeviceCity 311
11/17/20251861 N MILWAUKEE AVELogan Square32Completed2 daysPhone CallCity 311
6/28/20263142 N SOUTHPORT AVELake View32Completed8 daysMobile DeviceCity 311
9/25/20252753 N BOSWORTH AVELincoln Park32Completed11 daysPhone CallCity 311
8/29/20251345 W BARRY AVELake View32Completed7 daysAlderman's OfficeCity 311
3/23/20263060 N CLYBOURN AVENorth Center32Completed1 dayInternetCity 311
11/17/20251900 N OAKLEY AVELogan Square32Completed2 daysMobile DeviceCity 311
8/6/20251750 N HOYNE AVEWest Town32Completed13 daysPhone CallCity 311
7/17/20262020 W ROSCOE STNorth Center32Completed3 daysPhone CallCity 311
12/23/20251701 N DAMEN AVEWest Town32Completed0 daysInternetCity 311
9/25/20251733 W ROSCOE STLake View32Completed10 daysInternetCity 311
7/11/20262104 W ROSCOE STNorth Center32Completed9 daysMobile DeviceCity 311
12/22/20252732 N WAYNE AVELincoln Park32Completed1 dayInternetCity 311
10/30/20261520 W FULLERTON AVELincoln Park32Open—Mobile DeviceCity 311
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