---
title: "List derived percentage fields"
method: GET
path: "/v1/data/demographics/derived"
tags: ["Demographics"]
---

# List derived percentage fields

`GET /v1/data/demographics/derived`

## Request

- Base URL: `https://api.mapulus.com`
- URL: `https://api.mapulus.com/v1/data/demographics/derived`
- Auth: HTTP bearer

List all available derived percentage fields.

Derived fields are computed at query time from raw census data. Use them
with `?fields=derived.pct_indigenous` on the demographics endpoint.

**63 static fields**, always available, no extra params needed. Covers:
- **Population** (G01): indigenous, born overseas/australia, english/other language,
  citizen, children, working age, seniors, education attendance, school completion
- **Age brackets** (G01): 11 fields for each G01 age bracket (0-4 through 85+)
- **Motor vehicles** (G34): no car, 1/2/3+ cars
- **Dwelling structure** (G42): separate house, semi-detached, flat/apartment, other
- **Labour force** (G43): unemployed, full/part-time, in/not in labour force
- **Qualifications** (G43): postgrad, bachelor, grad diploma, adv diploma, cert III/IV, I/II
- **Migration** (G43): moved 1yr/5yr ago, same address
- **Household income** (G33): negative/nil, under $650, $1k-2k, $2k+/week
- **Rent** (G40): under $200, $200-449, $450+/week
- **Mortgage** (G38): under $600, $600-999, $1000+/month
- **Household composition** (G35): lone person, large (5+), family household

## Response `200`

All available derived percentage fields.

- unknown

---

[API](https://skmtc.dev/mapulus/apis/mapulus-api.md) · [All operations](https://skmtc.dev/mapulus/apis/mapulus-api/llms.txt) · [OpenAPI document](https://skmtc.dev/mapulus/apis/mapulus-api/revisions/b99766fa053f?raw)