RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4026 locations in the last 30 days (4201 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.

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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20263405 N PARIS AVEDunning38Completed11 daysInternetCity 311
7/16/20264548 N LAWNDALE AVEAlbany Park33Completed11 daysPhone CallCity 311
9/28/20265428 W SCHOOL STPortage Park30Completed11 daysPhone CallCity 311
7/10/20266200 S PAULINA STWest Englewood15Completed11 daysPhone CallCity 311
11/1/202610904 S CENTRAL PARK AVEMount Greenwood19Completed11 daysInternetCity 311
7/27/20261618 N AVERS AVEHumboldt Park26Completed11 daysPhone CallCity 311
10/30/20261123 W WOLFRAM STLake View44Completed11 daysPhone CallCity 311
9/18/20254633 S WOOD STNew City15Completed11 daysAlderman's OfficeCity 311
8/24/20256233 N DRAKE AVENorth Park50Completed11 daysPhone CallCity 311
7/2/20264549 N CENTRAL AVEPortage Park45Completed11 daysPhone CallCity 311
8/17/20262714 W WINNEMAC AVELincoln Square40Completed11 daysPhone CallCity 311
8/20/20265751 W 64TH STClearing13Completed11 daysInternetCity 311
9/10/20261524 W BYRON STLake View46Completed11 daysInternetCity 311
10/26/2026544 W BROMPTON AVELake View46Completed11 daysInternetCity 311
8/11/20251250 W NEWPORT AVELake View44Completed11 daysInternetCity 311
8/30/20251900 W CRYSTAL STWest Town1Completed11 daysInternetCity 311
8/17/202510217 S CALIFORNIA AVEBeverly19Completed11 daysInternetCity 311
9/14/20264129 W CERMAK RDNorth Lawndale22Completed11 daysPhone CallCity 311
8/20/20262643 N WHIPPLE STLogan Square1Completed11 daysInternetCity 311
9/14/20252837 N MOBILE AVEBelmont Cragin30Completed11 daysInternetCity 311
10/12/20266532 N NIXON AVENorwood Park41Completed11 daysPhone CallCity 311
9/15/2025870 N RICHMOND STWest Town26Completed11 daysAlderman's OfficeCity 311
8/20/20265641 W 64TH PLClearing13Completed11 daysInternetCity 311
8/13/20267650 N BOSWORTH AVERogers Park49Completed11 daysPhone CallCity 311
8/17/20267243 S SANGAMON STEnglewood17Completed11 daysInternetCity 311
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