RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4291 locations in the last 30 days (4477 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

59,354 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/26/20264400 N CHRISTIANA AVEAlbany Park33Completed1 dayPhone CallCity 311
10/9/20264400 N ASHLAND AVEUptown47Completed14 daysInternetCity 311
5/11/20264400 N ASHLAND AVEUptown47Completed2 daysInternetCity 311
8/4/20264400 N ASHLAND AVEUptown47Completed13 daysInternetCity 311
10/2/202543 W NORTH BLVDNear North Side2Completed8 daysInternetCity 311
4/10/202643 W CHICAGO AVENear North Side42Completed3 daysAlderman's OfficeCity 311
9/9/202543 W 77TH STGreater Grand Crossing6Completed1 dayPhone CallCity 311
8/25/202543 W 77TH STGreater Grand Crossing6Completed2 daysMobile DeviceCity 311
10/16/202543 N WALLER AVEAustin29Completed1 dayPhone CallCity 311
11/12/202543 N WALLER AVEAustin29Completed1 dayPhone CallCity 311
9/21/202543 E CERMAK RDNear South Side3Completed10 daysInternetCity 311
10/7/202643 E 89TH STChatham6Completed14 daysMobile DeviceCity 311
9/2/202543 E 103RD PLRoseland9Completed8 daysAlderman's OfficeCity 311
6/28/2026439 W 61ST STEnglewood20Completed8 daysMobile DeviceCity 311
4/16/2026439 N WALLER AVEAustin29Completed1 dayMobile DeviceCity 311
3/2/2026438 W SURF STLake View44Completed2 daysMobile DeviceCity 311
3/5/2026438 W 97TH PLWashington Heights9Completed1 dayInternetCity 311
2/3/2026438 W 72ND STEnglewood6Completed1 dayInternetCity 311
8/14/2025438 W 43RD STNew City11Completed4 daysMobile DeviceCity 311
7/24/2026438 W 101ST PLWashington Heights9Completed12 daysInternetCity 311
7/17/2026438 S FRANKLIN STLoop34Completed6 daysInternetCity 311
5/20/20264385 S ARCHER AVEBrighton Park12Completed1 dayPhone CallCity 311
7/28/2025437 W NORTHNear North Side2Completed8 daysSalesforce Mobile AppCity 311
5/27/2026437 W 95TH PLWashington Heights9Completed2 daysMobile DeviceCity 311
9/18/2026437 E 88TH PLChatham8Completed18 daysPhone CallCity 311
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