RatCity — Chicago Rat and Rodent Sightings Map

RatCity

42976 locations in the last year (44105 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 — 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20262518 N FAIRFIELD AVELogan Square1Completed16 daysInternetCity 311
10/10/20262413 N SPAULDING AVELogan Square35Completed16 daysMobile DeviceCity 311
10/10/20262022 W MAYPOLE AVENear West Side27Completed13 daysInternetCity 311
10/10/20261851 W IOWA STWest Town36Completed9 daysMobile DeviceCity 311
10/10/202610837 S DR MARTIN LUTHER KING JR DRRoseland9Completed16 daysMobile DeviceCity 311
10/10/20263545 W BELMONT AVEAvondale35Completed16 daysInternetCity 311
10/10/20263459 W BELMONT AVEAvondale35Completed16 daysInternetCity 311
10/10/20262612 W FULLERTON AVELogan Square1Completed16 daysInternetCity 311
10/10/20262606 N SAWYER AVELogan Square35Completed16 daysInternetCity 311
10/10/20267550 S ESSEX AVESouth Shore7Completed9 daysInternetCity 311
10/10/20261434 N LAWLER AVEAustin37Completed11 daysMobile DeviceCity 311
10/10/20262613 W LELAND AVELincoln Square47Completed17 daysMobile DeviceCity 311
10/10/20266055 W BARRY AVEBelmont Cragin30Completed16 daysPhone CallCity 311
10/10/20261053 W 32ND STBridgeport11Completed16 daysInternetCity 311
10/10/20266731 N ODELL AVEEdison Park41Completed13 daysMobile DeviceCity 311
10/10/20262313 N SPRINGFIELD AVELogan Square35Completed6 daysMobile DeviceCity 311
10/10/20262613 W 24TH PLSouth Lawndale25Completed16 daysMobile DeviceCity 311
10/10/20264758 S WOOD STNew City15Completed13 daysInternetCity 311
10/10/20266650 N FAIRFIELD AVEWest Ridge50Completed12 daysMobile DeviceCity 311
10/10/20263351 N WOLCOTT AVENorth Center32Completed17 daysMobile DeviceCity 311
10/10/20265832 S TRIPP AVEWest Elsdon13Completed17 daysMobile DeviceCity 311
10/10/20268935 S HERMITAGEAuburn Gresham21Completed12 daysSalesforce Mobile AppCity 311
10/10/20265834 S TRIPP AVEWest Elsdon13Completed17 daysMobile DeviceCity 311
10/10/20265437 W WARWICK AVEPortage Park30Completed13 daysMobile DeviceCity 311
10/10/20261641 W ADDISON STLake View47Completed17 daysMobile DeviceCity 311
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