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.

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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
7/13/20261849 N MILWAUKEE AVELogan Square32Completed9 daysMobile DeviceCity 311
7/31/20251814 N SAWYER AVELogan Square26Completed7 daysPhone CallCity 311
10/10/20252616 N SPRINGFIELD AVELogan Square35Completed10 daysPhone CallCity 311
10/12/20251910 N CALIFORNIA AVELogan Square1Completed8 daysMobile DeviceCity 311
8/1/20252049 N AVERS AVELogan Square26Completed6 daysPhone CallCity 311
10/10/20252031 N ALBANY AVELogan Square1Completed10 daysMobile DeviceCity 311
9/7/20261736 N SPAULDING AVEHumboldt Park26Completed14 daysMobile DeviceCity 311
9/27/20261351 N RIDGEWAY AVEHumboldt Park36Completed12 daysMobile DeviceCity 311
5/9/2026957 N CENTRAL PARK AVEHumboldt Park27Completed3 daysMobile DeviceCity 311
10/6/20263547 W EVERGREEN AVEHumboldt Park26Completed1 dayPhone CallCity 311
7/29/20251200 N SPRINGFIELD AVEHumboldt Park37Completed10 daysPhone CallCity 311
7/31/2026723 N HARDING AVEHumboldt Park37Completed5 daysMobile DeviceCity 311
2/7/20261254 N AVERS AVEHumboldt Park36Completed2 daysMobile DeviceCity 311
8/6/20253504 W HIRSCH STHumboldt Park26Completed6 daysMobile DeviceCity 311
11/5/20261643 N WHIPPLE STHumboldt Park26Completed1 dayPhone CallCity 311
8/3/20253439 W PIERCE AVEHumboldt Park26Completed5 daysMobile DeviceCity 311
2/7/20263839 W GRAND AVEHumboldt Park36Completed2 daysMobile DeviceCity 311
8/3/2026847 N SPRINGFIELD AVEHumboldt Park37Completed2 daysPhone CallCity 311
8/11/2025814 N RIDGEWAY AVEHumboldt Park27Completed1 dayPhone CallCity 311
9/7/20261307 N LAWNDALE AVEHumboldt Park26Completed14 daysPhone CallCity 311
9/27/20261718 N CENTRAL PARK AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
10/6/20251434 N HARDING AVEHumboldt Park26Completed9 daysMobile DeviceCity 311
5/18/20263313 W HIRSCH STHumboldt Park26Completed4 daysInternetCity 311
7/29/20251107 N KARLOV AVEHumboldt Park37Completed10 daysInternetCity 311
7/28/20263439 W HIRSCH STHumboldt Park26Completed14 daysPhone CallCity 311
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