RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3971 locations in the last 30 days (4149 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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/10/20261518 W 18TH STLower West Side25Completed4 daysPhone CallCity 311
10/21/20251518 S HOMAN AVENorth Lawndale24Completed3 daysMobile DeviceCity 311
9/25/20251518 N TRIPP AVEHumboldt Park36Completed8 daysPhone CallCity 311
8/22/20251518 N TRIPP AVEHumboldt Park36Completed3 daysPhone CallCity 311
10/19/20261518 N TRIPP AVEHumboldt Park36Completed1 dayPhone CallCity 311
10/22/20251518 N OAKLEY BLVDWest Town1Completed6 daysPhone CallCity 311
8/29/20261518 N KEYSTONE AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
8/14/20261518 N KARLOV AVEHumboldt Park36Completed17 daysPhone CallCity 311
9/4/20261518 N HARDING AVEHumboldt Park26Completed13 daysPhone CallCity 311
5/2/20261518 N GREENVIEW AVEWest Town1Completed2 daysPhone CallCity 311
10/5/20251518 N ARTESIAN AVEWest Town1Completed5 daysMobile DeviceCity 311
9/2/20251518 E 72ND STSouth Shore8Completed9 daysPhone CallCity 311
9/26/20261518 E 67TH PLSouth Shore5Completed11 daysInternetCity 311
7/14/20261518 E 65TH PLWoodlawn5Completed10 daysPhone CallCity 311
8/8/20231518 E 53RD STHyde Park4Completed14 daysMobile DeviceCity 311
9/26/20251517 W PEARSON STWest Town1Completed5 daysInternetCity 311
9/1/20251517 W PEARSON STWest Town1Completed9 daysInternetCity 311
9/28/20251517 W OLIVE AVEEdgewater48Completed5 daysPhone CallCity 311
9/24/20261517 W OLIVE AVEEdgewater48Completed14 daysPhone CallCity 311
8/16/20261517 W OLIVE AVEEdgewater48Completed11 daysPhone CallCity 311
6/9/20261517 W OAKDALE AVELake View32Completed1 dayMobile DeviceCity 311
4/30/20261517 W NORTH AVEWest Town1Completed4 daysPhone CallCity 311
4/30/20261517 W NORTH AVEWest Town1Completed4 daysPhone CallCity 311
9/22/20261517 W EDGEWATER AVEEdgewater48Completed3 daysInternetCity 311
9/12/20251517 W DIVERSEY PKWYLincoln Park32Completed13 daysMobile DeviceCity 311
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