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Office of the Chief Technology Officer

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开放数据(Chinese)-Open Data

Learn about DC data catalog, feeds, agency reports, Citywide Data Warehouse (CityDW), and find DC locations using OneCityMap.

Buscador de áreas de servicio policial (Spanish)

Cada residente vive en un Área de Servicio Policial (PSA),

Công cụ tìm khu vực dịch vụ cảnh sát_Vietnamise

Cư dân nào cũng sống trong một Khu vực Dịch vụ Cảnh sát (PSA) và mỗi PSA đều có một đội ngũ cảnh sát viên và quan chức được chỉ định. Mỗi quận cảnh sát có từ 7 đến 9 PSA. Có tổng cộng 56 PSA ở Đặc khu Columbia.

DC GIS Services

DC GIS provides the public a 'one-stop shop' for geospatial data.

DC GIS 서비스(Korean)

DC GIS, under the OCTO Digital Services program, provides the public a 'one-stop shop' for geospatial data.

DC Zoning Map

The DC Office of Zoning (DCOZ) is proud to introduce a new and improved comprehensive zoning map for the District of Columbia.

DC-Net

DC-Net provides symmetrical Internet service at download/upload speeds as high as 1 Gbps.

Données ouvertes(French)

Learn about DC data catalog, feeds, agency reports, Citywide Data Warehouse (CityDW), and find DC locations using OneCityMap.

Download the MAR Geocoder

As of October 2021, the MAR Desktop Geocoder is no longer supported by OCTO. This means that although the geocoder is still available and generally continues to work for some users, OCTO is no longer devoting resources to support bug fixes nor enhancements.

Dữ liệu mở (Vietnamise)-Open Data

Learn about DC data catalog, feeds, agency reports, Citywide Data Warehouse (CityDW), and find DC locations using OneCityMap.

Giới thiệu về DC GIS (Viet)

DC GIS, under the OCTO Digital Services program, provides the public a 'one-stop shop' for geospatial data.

Google Maps API for Work for DC GIS

Use Google Maps API for Work to diversify government web map applications built by District agencies.

Información abierta (Spanish)

Learn about DC data catalog, feeds, agency reports, Citywide Data Warehouse (CityDW), and find DC locations using OneCityMap.

IT Standards

Open Data and GIS StandardsLearn more about the District's IT standards.

Maps and Applications

A variety of maps and online applications developed in coordination with other agencies.

Open Data

Learn about government operational data made available to the public via various vehicles.

Police Service Area Finder

Every resident lives in a Police Service Area (PSA), and every PSA has a team of police officers and officials assigned to it. Each police district has between seven and nine PSAs. There are a total of 56 PSAs in the District of Columbia.

PropertyQuest

PropertyQuest has been developed by the District of Columbia Office of Planning as an easy way to view a wide range of site-related information, especially information on historic resources.

Public WiFi

Find a connection to the Internet using wi-fi enabled devices.

Recherche de zones de service de police(French)

Chaque habitant vit dans une zone de services de police (PSA), à laquelle est affectée une équipe de policiers et de responsables. Chaque district de police est constitué de 7 à 9 PSA. Au total, le district de Columbia comprend 56 PSA.