RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4286 locations in the last 30 days (4471 reports) · Last sighting 18 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
10/19/20261454 W CHICAGO AVEWest Town27Completed7 daysInternetCity 311
8/7/20251631 N CLAREMONT AVEWest Town32Completed14 daysPhone CallCity 311
8/11/2025919 N DAMEN AVEWest Town36Completed10 daysMobile DeviceCity 311
8/8/20251812 W HURON STWest Town36Completed13 daysMobile DeviceCity 311
10/24/20262719 W EVERGREEN AVEWest Town26Completed11 daysPhone CallCity 311
10/6/2025724 N LEAVITT STWest Town36Completed1 dayPhone CallCity 311
11/4/20262624 W NORTH AVEWest Town26Open—Alderman's OfficeCity 311
8/29/20252450 W CORTEZ STWest Town36Completed12 daysAlderman's OfficeCity 311
4/21/20261550 W CHICAGO AVEWest Town1Completed1 dayPhone CallCity 311
9/23/20251619 N DAMEN AVEWest Town32Completed9 daysPhone CallCity 311
11/3/2026826 N MARSHFIELD AVEWest Town1Open—InternetCity 311
4/21/20262028 W LE MOYNE STWest Town1Completed1 dayInternetCity 311
10/19/20261666 N FRANCISCO AVEWest Town26Completed9 daysMobile DeviceCity 311
10/3/2025920 N WINCHESTER AVEWest Town36Completed4 daysPhone CallCity 311
8/7/20252605 W CHICAGO AVEWest Town36Completed14 daysPhone CallCity 311
4/21/20261022 N WOOD STWest Town1Completed1 dayInternetCity 311
10/6/2025900 N WINCHESTER AVEWest Town36Completed1 dayPhone CallCity 311
10/23/20261129 W CHICAGO AVEWest Town27Completed3 daysInternetCity 311
9/19/20251335 N BOSWORTH AVEWest Town1Completed10 daysMobile DeviceCity 311
9/18/20251243 N CLEAVER STWest Town1Completed11 daysMobile DeviceCity 311
8/6/20252629 W CHICAGO AVEWest Town36Completed15 daysInternetCity 311
11/3/2026826 N MARSHFIELD AVEWest Town1Open—Mobile DeviceCity 311
10/4/20251909 W HURON STWest Town36Completed9 daysPhone CallCity 311
8/19/20251338 W HUBBARD STWest Town1Completed10 daysMobile DeviceCity 311
11/3/20262325 W RICE STWest Town36Open—Mobile DeviceCity 311
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