Sample expected output — donor cluster locator

Shape, not exact words.

State-level breakdown

All 500 donors in this sample sit in NSW postcodes (Sydney metro). For a real charity, the breakdown would look like this format:

State	Donors	% of file	AU pop share	Over-/under-index
NSW	500	100%	32%	3.1×
VIC	0	0%	26%	0×
QLD	0	0%	20%	0×
Other	0	0%	22%	0×

→ Your file is massively over-indexed on NSW. Either you’re a Sydney- based charity OR your fundraising history has only ever asked Sydney.

Capital vs regional

All donors are in Sydney metro. No regional Sydney representation.

For a real charity with a national presence, expect ~70% capital-city + ~30% regional. You have 100% / 0%. That’s a structural gap.

#	Postcode	Suburb(s)	Cohort	Donors
1	2030	Vaucluse / Dover Heights	Wealth-belt eastern	~52
2	2026	Bondi	Inner-east waterfront	~38
3	2088	Mosman	Wealth-belt north-shore	~36
4	2027	Darling Point / Edgecliff	Wealth-belt eastern	~32
5	2028	Double Bay	Wealth-belt eastern	~31
6	2031	Randwick	Inner-east mid-density	~27
7	2034	South Coogee / Maroubra Junction	Inner-east mid-density	~26
8	2036	Maroubra	Inner-east mid-density	~30
9	2010	Surry Hills / Darlinghurst	Inner-city renter	~30
10	2089	Neutral Bay	Wealth-belt north-shore	~24

Top 10 by donor RATE (per 1,000 adults)

Same data, different denominator. The rankings shift:

#	Postcode	Suburb(s)	Donors per 1k adults
1	2028	Double Bay	~7.5
2	2027	Darling Point	~6.8
3	2030	Vaucluse	~6.2
4	2089	Neutral Bay	~5.4
5	2010	Surry Hills	~4.9
6	2088	Mosman	~4.5
7	2031	Randwick	~3.6
8	2042	Newtown	~3.3
9	2026	Bondi	~3.0
10	2034	South Coogee	~2.8

→ The shift matters. 2028 (Double Bay) is your highest-traction postcode per capita — denser opportunity than Vaucluse despite Vaucluse having more donors in absolute terms. 2042 (Newtown) appears on the rate list but not the count list — a lower-population postcode where your brand has unusually strong traction relative to who lives there. Worth investigating why.

Donor belt

Eastern Sydney waterfront from Bondi to Watsons Bay + the wealth strip on the lower north shore (Mosman, Neutral Bay) + an inner-city renter stripe (Surry Hills, Newtown).

That’s two cohorts in one belt, separated by the harbour and demographics.

Donor desert

Western and South-Western Sydney (Parramatta, Liverpool, Bankstown, Mount Druitt, Blacktown corridor). Postcodes 2150-2200+ have near-zero donors despite high adult populations.
All regional NSW (Newcastle, Wollongong, Central Coast, regional north).
All of Australia outside NSW.

One chart for the design team

A choropleth of Sydney by donors-per-1000-adults, with the eastern wealth belt + the inner-city renter stripe both highlighted as separate clusters. Not a count map — a rate map. The count map flatters your biggest postcodes; the rate map shows where your message is genuinely resonating per capita. Pair with a one-line caption: “Two cohorts, one city — major-gift wealth + inner-city civic.”