RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4259 locations in the last 30 days (4446 reports) · Last sighting 15 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/12/20253643 W 66TH STWest Lawn23Completed3 daysPhone CallCity 311
12/9/20255151 S MASON AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
8/26/20253849 W 65TH PLWest Lawn23Completed7 daysAlderman's OfficeCity 311
10/9/20266714 S KOLIN AVEWest Lawn23Completed17 daysInternetCity 311
7/10/20263908 W 56TH PLWest Elsdon23Completed10 daysInternetCity 311
9/23/20255208 S KEATING AVEGarfield Ridge23Completed7 daysInternetCity 311
7/10/20265316 S HAMLIN AVEWest Elsdon23Completed9 daysInternetCity 311
9/22/20255225 S KEATING AVEGarfield Ridge23Completed8 daysInternetCity 311
12/3/20255228 S MERRIMAC AVEGarfield Ridge23Completed1 dayPhone CallCity 311
9/23/20255401 S LOREL AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
9/4/20253605 W 61ST PLWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/23/20255237 S KEATING AVEGarfield Ridge23Completed7 daysInternetCity 311
7/14/20267149 S HARDING AVEWest Lawn23Completed6 daysAlderman's OfficeCity 311
7/3/20265400 S NEVA AVEGarfield Ridge23Completed6 daysAlderman's OfficeCity 311
10/8/20253743 W 70TH PLWest Lawn23Completed6 daysPhone CallCity 311
8/21/20253900 W 60TH STWest Lawn23Completed8 daysInternetCity 311
9/10/20266831 S KEDVALE AVEWest Lawn23Completed13 daysInternetCity 311
8/29/20253605 W 61ST PLWest Lawn23Completed14 daysInternetCity 311
8/22/20253639 W 70TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
8/14/20255233 S HARDING AVEWest Elsdon23Completed11 daysPhone CallCity 311
12/29/20257118 S SPRINGFIELD AVEWest Lawn23Completed1 dayPhone CallCity 311
10/7/20255141 S MENARD AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
9/24/20257139 S HARDING AVEWest Lawn23Completed8 daysAlderman's OfficeCity 311
7/13/20265439 S KEDVALE AVEWest Elsdon23Completed7 daysPhone CallCity 311
9/22/20255319 S MOBILE AVEGarfield Ridge23Completed8 daysAlderman's OfficeCity 311
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