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🇺🇸 New York City

NYC311 Service Requests & Open Data

New York City opened 311 at 12:01 a.m. on 9 March 2003, folding more than 40 agency hotlines into one non-emergency number. It was telephone-only until a web channel arrived in 2009 and texting in 2011; in fiscal 2024 the website carried more contacts than the phone line. Since 2010 the city publishes every request daily as open data, with type, agency, location and both opening and closing timestamps, which is why outsiders can audit it. The City Council's own dashboard warns that vague resolution descriptions make it nearly impossible to tell whether an issue was actually fixed.

Live 📅 since 2003 ✔ Editor-reviewed

✔ Reviewed by the 1001 Smart Cities editorial desk · 🔎 Last verified

🏛️ GovernanceDigital governmentOpen dataCitizen participation

📊 Impact

38.2 million contacts in fiscal 2024 (Mayor's Management Report): about 18.2 million through the website, 17.5 million calls, and 2.5 million by app, text or social media.

🎓 Lesson

Complaint volume measures who complains, not where the problems are. Peer-reviewed work on New York's heating and hot-water requests finds neighbourhood socioeconomic characteristics predict underreporting, so allocating service by complaint counts can widen the gap it appears to close.

Evidence🏛️ Official
Scale🏙️ City-wide

Sources

↗ NYC311 — AboutOperator page: launch at 12:01 a.m. on 9 March 2003, the first call, the 311-692 text channel added in 2011, and open datasets published from 2010 onward.
↗ Office of the Mayor — Ten years of NYC311 (2013)Supports the origin: announced in Bloomberg's 2002 State of the City, consolidating more than 40 call centres and hotlines and 12 pages of phone-book listings.
↗ Mayor's Management Report FY2024 — 311 Customer Service CenterSource of the impact figures: 38.2 million contacts in fiscal 2024, of which roughly 18.2 million via the website (up 21% on FY2023), nearly 17.5 million calls and almost 2.5 million by app, text and social media.
↗ Gotham Gazette — Inside 311, the City's Front Door to GovernmentSupports the channel chronology: telephone-only from 2003, 311 Online added in 2009, text and social media in 2011.
↗ NYC Open Data — 311 Service Requests from 2010 to PresentThe dataset itself: daily updates, one row per request with complaint type, responding agency, location, and created and closed timestamps, no personally identifying information.
↗ New York City Council — 311 by agencyThe accountability counterweight: agency shares (NYPD 29.0%, HPD 23.0%, Sanitation 15.4%) and the Council's finding that vague, misleading or inaccurate resolution descriptions make it nearly impossible to track whether an issue was resolved.
↗ Streetsblog NYC — Ignored, Dismissed (21 Oct 2021)Worked example of journalism built on the closing timestamps: 26 million requests analysed, roughly 8,000 driver-misconduct complaints closed in under five minutes during 2020, and only 11% of such complaints producing a summons since 2010.
↗ NY State Comptroller — NYC311 Monitoring Tool (May 2025)Independent oversight body built a public neighbourhood-level monitoring tool directly on the daily open-data feed; also confirms the dataset and service are active in 2025.
↗ Boxer, Hong, Kontokosta & Neill, Annals of Applied Statistics 19(2), 2025Peer-reviewed basis for the lesson: modelling heating and hot-water complaints finds neighbourhood socioeconomic characteristics predict which buildings underreport to 311.
↗ Kontokosta, Hong & Korsberg — Equity in 311 Reporting (NYU, 2017)Second, independent equity finding: 20 million-plus requests compared with building violation records show the propensity to complain varies with socioeconomic, demographic, cultural and internet-access differences.
📎 Cite this project

1001 Smart Cities (2026). “NYC311 Service Requests & Open Data” — New York City, United States. The Smart City Atlas. https://1001smartcities.org/projects/nyc-311/ (last verified 2026-07-26). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

🔗 Related projects

🇺🇸 NYC Open Data and the 2012 Open Data Law · New York City One of the portal's top datasets, published daily since 2010 — two years before the 2012 law made publishing a duty. 🇺🇸 Trash Containerization & the Empire Bin · New York City The bin rollout's only proof of success is a fall in rat complaints filed here — a dataset that measures who complains. 🇺🇸 Local Law 144: Bias Audits for Hiring Algorithms · New York City 311 is the complaint path for the hiring-audit law — state auditors found only three of twelve test calls reached the regulator. 🇹🇭 Traffy Fondue: Bangkok's LINE-Based Problem Reporting · Bangkok Both log complaints and close them: Bangkok's council doubts its 81% completion rate, New York's doubts its resolution notes.

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🏙️ New York City Explore every verified project and the city's smart-city story. 🏛️ Governance Browse the main topic behind this project. 📖 Digital identity A verified electronic credential that lets residents prove who they are online and reach many public services through a single trusted login. 📖 Open data Information anyone is free to access, use and share, published by governments in machine-readable formats under an open licence. 📖 Participatory budgeting A democratic process in which residents directly propose and vote on how to spend part of a public budget. 🚦 Showcase or use case — what does a smart city actually need? Read the wider analysis and comparison. 🏅 How countries rank their smart cities Read the wider analysis and comparison.

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