RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4224 locations in the last 30 days (4410 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 — 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
7/9/20261033 E 100TH PLPullman8Completed5 daysMobile DeviceCity 311
6/4/20264123 N ASHLAND AVELake View47Completed5 daysInternetCity 311
7/30/20253829 W 84TH STAshburn18Completed5 daysPhone CallCity 311
4/17/20262928 N LUNA AVEBelmont Cragin31Completed5 daysPhone CallCity 311
5/28/20263835 N MARSHFIELD AVELake View47Completed5 daysInternetCity 311
6/11/20264630 S ROCKWELL STBrighton Park12Completed5 daysAlderman's OfficeCity 311
9/12/20251531 S HARDING AVENorth Lawndale24Completed5 daysPhone CallCity 311
6/21/20263120 N RUTHERFORD AVEMontclare36Completed5 daysInternetCity 311
2/27/20261120 W 76TH STAuburn Gresham17Completed5 daysInternetCity 311
10/11/20251450 W BELLE PLAINE AVELake View47Completed5 daysMobile DeviceCity 311
9/28/20254156 W CERMAK RDNorth Lawndale24Completed5 daysInternetCity 311
8/26/20264909 W WINNEMAC AVEForest Glen45Completed5 daysPhone CallCity 311
5/29/202610708 S WHIPPLE STMount Greenwood19Completed5 daysPhone CallCity 311
7/31/20265801 S SAWYER AVEGage Park14Completed5 daysPhone CallCity 311
4/29/20261240 W GRACE STLake View44Completed5 daysPhone CallCity 311
5/31/20265737 W HENDERSON STPortage Park30Completed5 daysInternetCity 311
10/11/20251452 W BELLE PLAINE AVELake View47Completed5 daysMobile DeviceCity 311
1/23/20264041 N PAULINA STLake View47Completed5 daysInternetCity 311
7/1/20263824 W 104TH STMount Greenwood19Completed5 daysPhone CallCity 311
10/9/20251421 W BERWYN AVEEdgewater48Completed5 daysPhone CallCity 311
10/21/20262143 W WARREN BLVDNear West Side27Completed5 daysInternetCity 311
6/4/20264839 N DAMEN AVELincoln Square47Completed5 daysInternetCity 311
10/11/20254524 N PAULINA STUptown47Completed5 daysMobile DeviceCity 311
9/26/20256732 W 64TH STClearing13Completed5 daysInternetCity 311
7/17/20261345 W CARMEN AVEUptown47Completed5 daysInternetCity 311
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