RatCity — Chicago Rat and Rodent Sightings Map

RatCity

878 locations in the last week (914 reports) · Last sighting 22 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 — 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
11/3/2026515 N HALSTED STWest Town27Open—InternetCity 311
11/3/20262803 S MICHIGAN AVEDouglas4Open—Phone CallCity 311
11/3/20264428 S PRAIRIE AVEGrand Boulevard3Completed3 daysPhone CallCity 311
11/3/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
11/3/20262304 N CLEVELAND AVELincoln Park43Open—Phone CallCity 311
11/3/20265021 S CHRISTIANA AVEGage Park14Completed1 dayPhone CallCity 311
11/3/20264755 S SPRINGFIELD AVEArcher Heights14Completed1 dayPhone CallCity 311
11/3/20267337 S LOWE AVEEnglewood6Completed1 dayPhone CallCity 311
11/3/20266247 N SPRINGFIELD AVENorth Park39Open—Mobile DeviceCity 311
11/3/2026160 N LAPORTE AVEAustin28Completed1 dayPhone CallCity 311
11/3/20264022 N CLARENDON AVEUptown46Open—InternetCity 311
11/3/20263310 N ORANGE AVEDunning38Open—Phone CallCity 311
11/3/202610102 S LOWE AVEWashington Heights21Open—Phone CallCity 311
11/3/2026734 W BITTERSWEET PLUptown46Completed1 dayPhone CallCity 311
11/3/20263924 N JANSSEN AVELake View46Completed2 daysPhone CallCity 311
11/3/202610100 S SANGAMON STWashington Heights21Open—Phone CallCity 311
11/3/20266532 N NIXON AVENorwood Park41Completed1 dayPhone CallCity 311
11/3/20261213 N PAULINA STWest Town1Open—InternetCity 311
11/3/20266737 W RASCHER AVENorwood Park41Completed1 dayPhone CallCity 311
11/3/20266650 S KEATING AVEClearing13Open—InternetCity 311
11/3/202611115 S CENTRAL PARK AVEMount Greenwood19Open—Phone CallCity 311
11/3/20262311 N OAKLEY AVELogan Square32Open—InternetCity 311
11/3/20264211 N WOLCOTT AVENorth Center47Open—Phone CallCity 311
11/3/20261448 W 73RD PLWest Englewood17Open—Phone CallCity 311
11/3/20261910 S LAFLIN STLower West Side25Open—Alderman's OfficeCity 311
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