RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4022 locations in the last 30 days (4196 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.

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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 — 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
11/3/20265500 N MULLIGAN AVEJefferson Park41Open—InternetCity 311
7/9/20265346 N MONT CLARE AVENorwood Park41Completed8 daysInternetCity 311
7/5/20266416 N NEW ENGLAND AVENorwood Park41Completed8 daysPhone CallCity 311
10/29/20267000 W BALMORAL AVENorwood Park41Completed7 daysMobile DeviceCity 311
9/29/20257263 W MYRTLE AVENorwood Park41Completed8 daysInternetCity 311
9/30/20256333 N OAK PARK AVENorwood Park41Completed7 daysInternetCity 311
11/3/20265321 N NEW ENGLAND AVENorwood Park41Open—Phone CallCity 311
7/8/20265135 N MONT CLARE AVENorwood Park41Completed9 daysInternetCity 311
7/14/20265429 N NEVA AVENorwood Park41Completed3 daysAlderman's OfficeCity 311
7/8/20265344 N NEVA AVENorwood Park41Completed9 daysPhone CallCity 311
9/11/20255738 N NATOMA AVENorwood Park41Completed1 dayPhone CallCity 311
10/27/20266904 W FARRAGUT AVENorwood Park41Completed2 daysPhone CallCity 311
10/16/20266302 W GIDDINGS STPortage Park41Completed11 daysMobile DeviceCity 311
8/26/20257219 W OLIVE AVENorwood Park41Completed10 daysPhone CallCity 311
12/4/20257643 W HORTENSE AVENorwood Park41Completed1 dayPhone CallCity 311
10/13/20266306 W LAWRENCE AVEPortage Park41Completed10 daysPhone CallCity 311
7/8/20267032 W FARRAGUT AVENorwood Park41Completed9 daysInternetCity 311
10/27/20266677 W RAVEN STNorwood Park41Completed2 daysPhone CallCity 311
7/8/20267029 W FARRAGUT AVENorwood Park41Completed9 daysInternetCity 311
8/4/20255032 N MOBILE AVEJefferson Park41Completed14 daysInternetCity 311
9/30/20257211 W MYRTLE AVENorwood Park41Completed7 daysMobile DeviceCity 311
8/14/20255008 N NOTTINGHAM AVENorwood Park41Completed8 daysPhone CallCity 311
11/2/20267003 W HIGGINS AVENorwood Park41Open—Mobile DeviceCity 311
7/13/20267052 W BERWYN AVENorwood Park41Completed4 daysPhone CallCity 311
9/11/20256942 N OLCOTT AVEEdison Park41Completed1 dayPhone CallCity 311
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