Calcium at a glance
Walk score
0
Very car dependent
Population
12
Median age 57
The brief
What to know about Calcium.
The postcode for Calcium is 4816 (QLD).
Calcium (4816) sits in the Croydon region of Queensland.
Calcium has roughly 12 residents, with a retiree-heavy demographic. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Side by side
Compare Calcium with a nearby suburb.
Median, growth, schools, walkability, all in one view.
Nearby suburbs
Day to day
What it’s like to live here.
Calcium scores 0/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 31°C (warm), winter mornings around 14°C (mild). Annual rainfall lands at about 1036mm. Data comes from the Bureau of Meteorology's Townsville Aero station, 15.2km away.
Schooling within or near the suburb covers 7 government primary, 2 government secondary, 2 Catholic, 5 independent.
Who lives here
Demographics.
The 2021 Census put Calcium's population at 12, with a median age of 57. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (100% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. Lone-person households are notable here (75%), often a marker of unit-heavy stock and walkable infrastructure.
Population
12
Median age
57
Family households
–
Lone person
75%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026· sales-qld
Rental and ownership
Weekly rent (house)
$150/wk
Weekly rent (unit)
$128/wk
Owner occupied
100%
Renter occupied
–
At a deeper level
12
Median age: 57
Free appraisal
What’s your home worth in Calcium?
A local agent who actually sells in Calcium will give you an honest number, backed by recent comparable sales. Free, no commitment to list.
Free guide · 2026 edition
Thinking of selling in Calcium?
The complete guide to selling: what it costs, how agents price your home, and a 12-week plan to settlement. Personalised to Calcium, free, in 60 seconds.
Free guide · 2026 edition
Thinking of buying in Calcium?
What you can actually spend, the 2026 first home buyer schemes for your state, and how not to overpay. A free buying guide, in about 60 seconds.
Get property alerts for Calcium
Be the first to know when new listings hit the market.
Safety
Crime and safety.
LGA-wide data, not suburb-specific
QLD Police only publishes crime statistics at the local government area / region level. The numbers below cover the entire Croydon Shire Council, which may include suburbs with very different crime profiles. Quieter residential pockets within the LGA likely have lower rates than the total suggests; busier areas may have higher.
34
total offences in 2026 across the Croydon Shire Council LGA
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Getting around
Walkability.
0
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Nearby suburbs
Education
Schools in Calcium.
Local schools for Calcium
View the catchment for each school to find out more.
Government School Catchment
Woodstock State School
Kelso State School
Rasmussen State School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1036 mm
Hottest Month (avg max)
31.4°C
Coldest Month (avg min)
13.6°C
Monthly Rainfall (mm)
Weather data from BOM station Townsville Aero (15 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Calcium.
- What is the Calcium postcode?
- Calcium is in the 4816 postcode, in QLD, in the Croydon region.
- Where is Calcium?
- Calcium is a regional suburb in QLD, postcode 4816, in the Croydon region.
- What is the average rent in Calcium?
- The median weekly rent for houses is $150, for units it's $128.
- What schools are in Calcium?
- There are 16 schools serving Calcium on this page, including Woodstock State School, Kelso State School, Rasmussen State School.
- How walkable is Calcium?
- Calcium has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Calcium?
- Calcium is close to Woodstock, Reid River, Ross River, Barringha, Majors Creek.
- What is the population of Calcium?
- The population of Calcium is approximately 12 (2021 Census). The median age is 57.
For Sale
Calcium
Buying
Selling
Surrounding Suburbs
Side by side
Compare Calcium vs a nearby suburb
See median prices, growth, schools, walkability and risk side by side in one view.
Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
Every figure on this page carries its source and as-of date in a tooltip. If a figure looks off to you, tell us and we’ll fix it within a week.
No login
No paywall, no sign-up, no download form. The suburb data is the product. We earn from partner brokers and agents on the rare occasion you ask for one.
Thinking about selling in Calcium?
The complete selling guide, personalised to Calcium: what it really costs, how agents price homes here, and a 12-week plan to settlement. Free PDF, 60 seconds.
Get the free selling guide