RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/21/20263511 N WILTON AVELake View44Completed12 daysInternetCity 311
10/21/20265154 N LOTUS AVEJefferson Park45Completed1 dayPhone CallCity 311
10/21/20264346 W PARKER AVEHermosa31Completed14 daysInternetCity 311
10/21/20261619 N LINDER AVEAustin37Completed13 daysMobile DeviceCity 311
10/21/202610136 S NORMAL AVEWashington Heights9Completed1 dayPhone CallCity 311
10/21/20266534 N HARLEM AVEEdison Park41Completed1 dayPhone CallCity 311
10/21/20265839 S NORDICA AVEGarfield Ridge13Completed12 daysInternetCity 311
10/21/20263138 W WILSON AVEAlbany Park33Completed14 daysInternetCity 311
10/21/202610 N LAMON AVEAustin28Completed13 daysPhone CallCity 311
10/21/20262147 N CLAREMONT AVELogan Square32Completed13 daysInternetCity 311
10/21/20269300 S NORMAL AVEWashington Heights9Completed14 daysPhone CallCity 311
10/21/20263436 N ASHLAND AVELake View47Completed12 daysInternetCity 311
10/21/2026162 W GRAND AVENear North Side42Completed1 dayPhone CallCity 311
10/21/20267915 S PARNELL AVEChatham6Completed8 daysPhone CallCity 311
10/21/20265226 W 64TH PLClearing13Completed12 daysPhone CallCity 311
10/21/20261718 W 48TH STNew City15Completed13 daysPhone CallCity 311
10/21/20262338 N AVERS AVELogan Square35Completed12 daysMobile DeviceCity 311
10/21/20265104 W SCHOOL STPortage Park31Completed2 daysPhone CallCity 311
10/21/20261441 W FLETCHER STLake View32Completed1 dayInternetCity 311
10/21/20262800 S MILLARD AVESouth Lawndale22Completed8 daysPhone CallCity 311
10/21/20266965 N PAULINA STRogers Park49Completed13 daysMobile DeviceCity 311
10/21/20263614 N OVERHILL AVEDunning38Completed12 daysInternetCity 311
10/21/20263721 N ELSTON AVEIrving Park33Completed14 daysInternetCity 311
10/21/20262708 W ARMITAGE AVELogan Square1Completed13 daysInternetCity 311
10/21/20261832 W DIVERSEY PKWYNorth Center32Completed13 daysAlderman's OfficeCity 311
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