Public Housing Developments

HUD furnishes technical and professional assistance in planning, developing and managing these developments. Public Housing Developments are depicted as a distinct address chosen to represent the general location of an entire Public Housing Development, which may be comprised of several buildings scattered across a community. The building with the largest number of units is selected to represent the location of the development. Location data for HUD-related properties and facilities are derived from HUD's enterprise geocoding service. While not all addresses are able to be geocoded and mapped to 100% accuracy, we are continuously working to improve address data quality and enhance coverage. Please consider this issue when using any datasets provided by HUD. When using this data, take note of the field titled “LVL2KX” which indicates the overall accuracy of the geocoded address using the following return codes: ‘R’ - Interpolated rooftop (high degree of accuracy, symbolized as green) ‘4’ - ZIP+4 centroid (high degree of accuracy, symbolized as green) ‘B’ - Block group centroid (medium degree of accuracy, symbolized as yellow) ‘T’ - Census tract centroid (low degree of accuracy, symbolized as red) ‘2’ - ZIP+2 centroid (low degree of accuracy, symbolized as red) ‘Z’ - ZIP5 centroid (low degree of accuracy, symbolized as red) ‘5’ - ZIP5 centroid (same as above, low degree of accuracy, symbolized as red) Null - Could not be geocoded (does not appear on the map) For the purposes of displaying the location of an address on a map only use addresses and their associated lat/long coordinates where the LVL2KX field is coded ‘R’ or ‘4’. These codes ensure that the address is displayed on the correct street segment and in the correct census block. The remaining LVL2KX codes provide a cascading indication of the most granular level geography for which an address can be confirmed. For example, if an address cannot be accurately interpolated to a rooftop (‘R’), or ZIP+4 centroid (‘4’), then the address will be mapped to the centroid of the next nearest confirmed geography: block group, tract, and so on. When performing any point-in polygon analysis it is important to note that points mapped to the centroids of larger geographies will be less likely to map accurately to the smaller geographies of the same area. For instance, a point coded as ‘5’ in the correct ZIP Code will be less likely to map to the correct block group or census tract for that address. In an effort to protect Personally Identifiable Information (PII), the characteristics for each building are suppressed with a -4 value when the “Number_Reported” is equal to, or less than 10. To learn more about Public Housing visit: https://www.hud.gov/program_offices/public_indian_housing/programs/ph/. Data Dictionary: DD_Public Housing Developments Date of Coverage: 06/2026 Last Updated: QuarterlyHUD为各类公共住房开发项目的规划、开发与管理提供技术与专业支持。公共住房开发项目以单个专属地址进行标识，该地址用于代表整个开发项目的大致区位——此类项目可能由分散在同一社区内的多栋楼宇组成。项目区位将以该开发项目中单元数量最多的楼宇地址作为代表。HUD相关房产与设施的区位数据均来源于HUD的企业级地理编码服务。尽管并非所有地址均可完成地理编码并实现100%精准匹配，但我们正持续优化地址数据质量并扩大覆盖范围。在使用HUD提供的各类数据集时，请留意该局限性。 使用本数据集时，请留意名为"LVL2KX"的字段，该字段通过以下返回码标识地理编码地址的整体精度等级： - ‘R’：插值屋顶坐标（高精度，以绿色符号表示） - ‘4’：ZIP+4质心（高精度，以绿色符号表示） - ‘B’：街区群质心（中精度，以黄色符号表示） - ‘T’：普查片区质心（低精度，以红色符号表示） - ‘2’：ZIP+2质心（低精度，以红色符号表示） - ‘Z’：ZIP5质心（低精度，以红色符号表示） - ‘5’：ZIP5质心（同上，低精度，以红色符号表示） - Null：无法完成地理编码（不会在地图上显示） 若需在地图上展示地址位置，仅可使用"LVL2KX"字段编码为‘R’或‘4’的地址及其关联的经纬度坐标。此类编码可确保地址被精准匹配至正确的街道路段与普查街区。其余"LVL2KX"编码则按层级依次标识地址可被确认的最细粒度地理范围。例如，若某地址无法被精准插值至屋顶坐标（‘R’）或ZIP+4质心（‘4’），则该地址将被映射至下一级最近的已确认地理范围的质心，依次为街区群、普查片区等。 在执行点入多边形分析时，需特别注意：映射至较大地理范围质心的点位，将更难精准匹配至同一区域内的更小地理范围。例如，编码为‘5’的点位虽匹配至正确的邮政编码区域，但难以对应至该地址所属的准确街区群或普查片区。 为保护个人可识别信息（Personally Identifiable Information, PII），当"Number_Reported"字段值小于或等于10时，对应楼宇的各项特征将被替换为-4以进行隐匿处理。如需了解更多公共住房相关信息，请访问：https://www.hud.gov/program_offices/public_indian_housing/programs/ph/。 数据字典：DD_公共住房开发项目 覆盖日期：2026年6月 更新频率：季度更新