RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4130 locations in the last 30 days (4309 reports) · Last sighting 12 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.

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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/30/20266561 N HARLEM AVENorwood Park41Completed2 daysAlderman's OfficeCity 311
9/12/20256411 N NEW ENGLAND AVENorwood Park41Completed12 daysAlderman's OfficeCity 311
3/22/20266055 W PETERSON AVENorwood Park45Completed2 daysMobile DeviceCity 311
10/15/20265340 N NEW ENGLAND AVENorwood Park41Completed12 daysMobile DeviceCity 311
10/28/20256138 W THORNDALE AVENorwood Park45Completed6 daysInternetCity 311
9/16/20257545 W HIGGINS AVENorwood Park41Completed9 daysPhone CallCity 311
3/31/20265753 N MELVINA AVENorwood Park45Completed1 dayInternetCity 311
10/13/20266253 W HYACINTH STNorwood Park39Completed15 daysPhone CallCity 311
3/1/20265107 N NORMANDY AVENorwood Park41Completed2 daysInternetCity 311
3/2/20266143 W PETERSON AVENorwood Park45Completed1 dayMobile DeviceCity 311
9/4/20256330 W HYACINTH STNorwood Park39Completed14 daysAlderman's OfficeCity 311
3/25/20265634 N NATOMA AVENorwood Park41Completed1 dayPhone CallCity 311
8/14/20265255 N OLEANDER AVENorwood Park41Completed18 daysPhone CallCity 311
8/10/20265500 N ORIOLE AVENorwood Park41Completed11 daysInternetCity 311
11/19/20255801 N MOBILE AVENorwood Park45Completed1 dayMobile DeviceCity 311
10/13/20266958 W IMLAY STNorwood Park41Completed10 daysPhone CallCity 311
2/28/20265816 N MOODY AVENorwood Park45Completed3 daysMobile DeviceCity 311
3/20/20265824 N MOODY AVENorwood Park45Completed3 daysMobile DeviceCity 311
11/8/20254820 N NATOMA AVENorwood Park41Completed4 daysInternetCity 311
11/19/20255850 N MULLIGAN AVENorwood Park45Completed1 dayPhone CallCity 311
4/8/20266353 W HYACINTH STNorwood Park39Completed2 daysPhone CallCity 311
3/31/20265742 N MEADE AVENorwood Park45Completed1 dayInternetCity 311
11/13/20256101 N NORTHWEST HWYNorwood Park41Completed4 daysInternetCity 311
11/13/20256265 N NORTHWEST HWYNorwood Park41Completed4 daysPhone CallCity 311
4/6/20267040 W IMLAY STNorwood Park41Completed0 daysMobile DeviceCity 311
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