RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4191 locations in the last 30 days (4371 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/8/202610315 S EMERALD AVERoseland21Completed1 dayPhone CallCity 311
6/9/20261727 W 90TH PLWashington Heights21Completed2 daysPhone CallCity 311
6/18/202610615 S SANGAMON STWashington Heights21Completed4 daysPhone CallCity 311
2/10/202611153 S GREEN STMorgan Park21Completed1 dayPhone CallCity 311
5/28/20261322 W 112TH STMorgan Park21Completed1 dayPhone CallCity 311
5/26/202611000 S NORMAL AVERoseland21Completed3 daysInternetCity 311
6/8/20268600 S LAFLIN STAuburn Gresham21Completed3 daysPhone CallCity 311
7/16/20268418 S GILBERT CTAuburn Gresham21Completed12 daysPhone CallCity 311
6/3/20261473 W 114TH PLMorgan Park21Completed5 daysInternetCity 311
6/10/20261328 W 97TH PLWashington Heights21Completed1 dayInternetCity 311
5/26/202611008 S NORMAL AVERoseland21Completed3 daysInternetCity 311
7/17/20269339 S MAY STWashington Heights21Completed11 daysInternetCity 311
6/6/202611402 S CARPENTER STMorgan Park21Completed2 daysInternetCity 311
2/19/2026912 W 95TH STWashington Heights21Completed1 dayPhone CallCity 311
5/30/20269358 S LAFLIN STWashington Heights21Completed3 daysMobile DeviceCity 311
5/31/20268739 S BISHOP STAuburn Gresham21Completed2 daysMobile DeviceCity 311
2/19/20261055 W 87TH STAuburn Gresham21Completed1 dayMobile DeviceCity 311
1/12/20269630 S HALSTED STWashington Heights21Completed1 dayPhone CallCity 311
6/1/202610521 S WALLACE STRoseland21Completed1 dayPhone CallCity 311
2/19/2026910 W 95TH STWashington Heights21Completed1 dayAlderman's OfficeCity 311
1/12/20269000 S LOOMIS STWashington Heights21Completed1 dayAlderman's OfficeCity 311
10/15/202510637 S PEORIA STWashington Heights21Completed7 daysPhone CallCity 311
5/30/2026727 W 116TH PLWest Pullman21Completed3 daysInternetCity 311
6/1/202610430 S PARNELL AVERoseland21Completed1 dayPhone CallCity 311
7/16/20269421 S LOOMIS STWashington Heights21Completed12 daysPhone CallCity 311
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