RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4154 locations in the last 30 days (4336 reports) · Last sighting 2 days 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/20255356 N BERNARD STNorth Park39Completed8 daysInternetCity 311
10/22/20255850 N MULLIGAN AVENorwood Park45Completed8 daysAlderman's OfficeCity 311
9/24/20257139 S HARDING AVEWest Lawn23Completed8 daysAlderman's OfficeCity 311
7/5/20265438 N NEWLAND AVENorwood Park41Completed8 daysMobile DeviceCity 311
6/28/20265131 N LOTUS AVEJefferson Park45Completed8 daysInternetCity 311
7/19/20263746 W LELAND AVEAlbany Park33Completed8 daysInternetCity 311
10/15/20252022 N LAWLER AVEBelmont Cragin26Completed8 daysInternetCity 311
10/20/20253325 N SEMINARY AVELake View44Completed8 daysInternetCity 311
8/18/20251047 S OAKLEY AVENear West Side28Completed8 daysInternetCity 311
10/20/202511914 S LOWE AVEWest Pullman21Completed8 daysPhone CallCity 311
7/8/20265696 S ARCHER AVEGarfield Ridge23Completed8 daysMobile DeviceCity 311
9/15/202510835 S EGGLESTON AVERoseland21Completed8 daysInternetCity 311
8/4/20265111 N WOLCOTT AVELincoln Square40Completed8 daysInternetCity 311
7/16/20262507 W COYLE AVEWest Ridge40Completed8 daysMobile DeviceCity 311
9/8/20252344 W JARVIS AVEWest Ridge50Completed8 daysInternetCity 311
6/29/20266520 S TALMAN AVEChicago Lawn16Completed8 daysPhone CallCity 311
10/14/202511261 S RACINE AVEMorgan Park21Completed8 daysMobile DeviceCity 311
8/20/20262850 W BERWYN AVELincoln Square39Completed8 daysMobile DeviceCity 311
6/23/20262212 N KEELER AVEHermosa35Completed8 daysPhone CallCity 311
7/24/20252852 N LAWNDALE AVEAvondale35Completed8 daysMobile DeviceCity 311
7/23/20265945 W MIDWAY PARK PARKAustin29Completed8 daysMobile DeviceCity 311
8/18/2025539 W 43RD STNew City11Completed8 daysPhone CallCity 311
7/28/20265331 S RUTHERFORD AVEGarfield Ridge23Completed8 daysMobile DeviceCity 311
10/9/20251730 S WABASH AVENear South Side3Completed8 daysInternetCity 311
8/28/20255139 N SAYRE AVENorwood Park41Completed8 daysInternetCity 311
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