> ## Documentation Index > Fetch the complete documentation index at: https://docs.ihuus.com/llms.txt > Use this file to discover all available pages before exploring further. # Population Age Profile > Derived from the most recent US Census Bureau data. Scores range from 1 (predominantly young adults aged 20-34, few children or seniors) to 255 (predominantly senior, strong 65+ population and high median age). 128 represents a balanced age mix across young adults, families, and older residents. A score of 0 means no data is available. ## OpenAPI ````yaml /openapi.json get /demographics/population-profile openapi: 3.1.0 info: title: Neighborhood Intelligence API description: >- High-performance geospatial API for neighborhood-level intelligence. Covers K-12 school search and four scored dimension groups: Vibe (privacy, walkability, visual appeal, dog friendliness, urban-rural character, liveliness), Environment (acoustic comfort, air quality, industrial proximity), Demographics (health insurance coverage, ideological lean, population age profile), and Risk (flood and fire hazard). contact: name: iHuus, Inc. url: https://ihuus.com/ version: 0.1.0 servers: - url: https://api.ihuus.com/v1 description: iHuus API v1 security: - BearerAuth: [] tags: - name: Schools & Ratings description: >- Search for K-12 schools by geographic coordinates. Results include distance, school level, district information, demographics, and performance metrics where available. - name: Vibe description: >- Neighborhood vibe dimension scores. Each endpoint returns a 0-255 score for a single dimension (privacy, walkability, visual appeal, dog friendliness, urban-rural character) along with a semantic description. - name: Environment description: >- Environment dimension scores (0-255). Includes composite noise levels, air quality, and other environmental factors accompanied by detailed source breakdowns. - name: Demographics description: >- Demographic dimension scores (0-255) derived from US Census Bureau data. Includes health insurance coverage and other population-level indicators. - name: Risk description: >- Risk dimension scores (0-255). Covers natural hazard exposure including flood and fire risk, derived from FEMA and other authoritative hazard datasets. Lower scores indicate higher risk. - name: Tools description: >- Auxiliary tools for processing data and agent assistance, such as geocoding addresses into geospatial coordinates. paths: /demographics/population-profile: get: tags: - Demographics summary: Population Age Profile description: |- Derived from the most recent US Census Bureau data. Scores range from 1 (predominantly young adults aged 20-34, few children or seniors) to 255 (predominantly senior, strong 65+ population and high median age). 128 represents a balanced age mix across young adults, families, and older residents. A score of 0 means no data is available. operationId: ihuus_demographics_population_profile parameters: - name: lat in: query required: true schema: type: number maximum: 90 minimum: -90 title: Lat description: >- The latitude of the location in decimal degrees (WGS 84). Must be between -90 and 90. description: >- The latitude of the location in decimal degrees (WGS 84). Must be between -90 and 90. - name: lon in: query required: true schema: type: number maximum: 180 minimum: -180 title: Lon description: >- The longitude of the location in decimal degrees (WGS 84). Must be between -180 and 180. description: >- The longitude of the location in decimal degrees (WGS 84). Must be between -180 and 180. responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/PopulationProfileResponse' '401': description: Unauthorized — API key is missing, invalid, or expired. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '429': description: Too Many Requests — rate limit or monthly quota exceeded. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: PopulationProfileResponse: properties: result: $ref: '#/components/schemas/PopulationProfileResult' description: >- The Population Age Profile result. A score of 0 means no Census data is available for the given coordinates. type: object required: - result title: PopulationProfileResponse description: API response for a Population Age Profile lookup. examples: - result: description: >- Mixed: balanced spread of young adults, families, and older residents. score: 108 ErrorResponse: type: object properties: detail: type: string description: Human-readable error message. required: - detail title: ErrorResponse description: >- Standard error response returned on authentication failure and rate-limit violations. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError PopulationProfileResult: properties: score: type: integer title: Score description: >- Population Age Profile score (0-255). Derived from the most recent US Census Bureau data. Lower scores indicate a younger-skewing area dominated by young adults (20-34); higher scores indicate a senior-skewing area with a strong 65+ population and high median age. 128 represents a balanced age mix. 0 means no data is available. description: anyOf: - type: string - type: 'null' title: Description description: >- A short human-readable narrative explaining the score and the key factors that influenced it at this location. type: object required: - score title: PopulationProfileResult description: Population Age Profile score for a location. examples: - description: >- Mixed: balanced spread of young adults, families, and older residents. score: 108 ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError securitySchemes: BearerAuth: type: http scheme: bearer description: 'Your access token or API key. Pass as ``Authorization: Bearer ``.' ````