RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4151 locations in the last 30 days (4333 reports) · Last sighting 2 days 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 — 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/19/20263054 N RACINE AVELake View32Completed15 daysPhone CallCity 311
9/25/20252753 N BOSWORTH AVELincoln Park32Completed11 daysPhone CallCity 311
8/4/20253536 N OAKLEY AVENorth Center32Completed14 daysAlderman's OfficeCity 311
10/22/20261437 W MELROSE STLake View32Completed13 daysInternetCity 311
12/4/20252350 W MOFFAT STLogan Square32Completed1 dayInternetCity 311
10/5/20251427 W OAKDALE AVELake View32Completed8 daysMobile DeviceCity 311
8/13/20251803 W BELMONT AVENorth Center32Completed12 daysInternetCity 311
8/5/20252335 N ELSTON CTLogan Square32Completed10 daysInternetCity 311
8/1/20262113 W ROSCOE STNorth Center32Completed11 daysInternetCity 311
8/24/20252802 N WOLCOTT AVENorth Center32Completed12 daysMobile DeviceCity 311
10/30/20261914 W HENDERSON STNorth Center32Open—Mobile DeviceCity 311
12/18/20252025 W ARMITAGE AVELogan Square32Completed0 daysInternetCity 311
8/1/20262117 W ROSCOE STNorth Center32Completed11 daysInternetCity 311
8/14/20252307 W ADDISON STNorth Center32Completed11 daysInternetCity 311
8/27/20251900 N OAKLEY AVELogan Square32Completed12 daysInternetCity 311
8/15/20252015 W FULLERTON AVELogan Square32Completed11 daysInternetCity 311
8/9/20251939 W WELLINGTON AVENorth Center32Completed12 daysInternetCity 311
12/18/20251535 W BARRY AVELake View32Completed1 dayMobile DeviceCity 311
11/3/20262315 W MEDILL AVELogan Square32Open—Mobile DeviceCity 311
8/14/20251636 W WEBSTER AVELogan Square32Completed13 daysPhone CallCity 311
9/30/20251658 W BARRY AVELake View32Completed8 daysPhone CallCity 311
12/18/20251890 N MILWAUKEE AVELogan Square32Completed1 dayInternetCity 311
8/6/20252034 W CORTLAND STLogan Square32Completed13 daysInternetCity 311
8/25/20262713 N MARSHFIELD AVELincoln Park32Completed16 daysPhone CallCity 311
10/23/20261523 W MONTANA STLincoln Park32Completed12 daysInternetCity 311
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