๐ How Rare Are You in Chile?
๐จ๐ฑ Genetic Landscape of Chile
Chile's gene pool blends Mapuche Indigenous and Spanish colonial heritage, with significant German, Croatian, and Palestinian immigrant contributions. Southern Chile around Valdivia has the strongest German genetic influence in South America. The Mapuche people โ never fully conquered by the Inca or Spain โ maintain one of the most intact Indigenous genetic profiles in the Americas. Chile's extreme geography (4,300km long, averaging just 177km wide) creates natural genetic gradients from north to south.
Distance does the sorting here. Rapa Nui, annexed in 1888, lies roughly 3,500 kilometres out in the Pacific and is Polynesian in language, name and descent, so a Chilean passport can come with Austronesian ancestry. In the far south, Magallanes was reached by sea long before it was reached by road, and Punta Arenas drew Dalmatian islanders who had sailed most of the way around the continent. The Chiloรฉ archipelago kept its own Spanish, its own mythology and a strong Huilliche substrate. Up in the northern altiplano, Aymara communities sit closer to Bolivian highland life than to anything in Santiago. The country is less one population than a string of separated ones, each shaped by whatever cut it off.
๐๏ธ The Census Question Chile Had Not Asked Before 2024
The 2024 census was the first Chilean census to include a question on pueblos afrodescendientes. It is there because of Ley 21.151, promulgated in April 2019, which granted legal recognition to the Pueblo Tribal Afrodescendiente Chileno. The question runs on self-identification — the Instituto Nacional de Estadísticas describes it as a free, voluntary and personal declaration — and when INE reported the answers, 174,190 people, 0.9% of the población censada, declared themselves afrodescendiente. In the Arica y Parinacota region the share was 5.4%; in Tarapacá and Antofagasta it was 1.6% each.
Two things follow from that, and both apply to the tables further down. One: a national figure can sit six times below one of its own regions, so a country average is a blunt instrument. Two: before 2024 no Chilean census produced a national count of that population at all — not a zero, just nothing, because the form had no box for it. Every percentage on this page has a start date and a decision behind it — that is what Data Sources is for.
๐๏ธ Eye Color
| Brown | 55% |
| Hazel | 15% |
| Dark Brown | 12% |
| Green | 8% |
| Blue | 8% |
| Gray | 2% |
๐ Hair Color
| Dark Brown | 30% |
| Black | 30% |
| Brown | 22% |
| Blonde | 8% |
| Other | 10% |
๐ฉธ Blood Type
| O+ | 50% |
| A+ | 25% |
| B+ | 6% |
| AB+ | 2% |
| O- | 8% |
| A- | 5% |
| B- | 2% |
| AB- | 2% |
Trait frequencies on this page come from public and institutional datasets โ see Data Sources.
🧮 Calculate Your Rarity in Chile
Pick your eye colour, hair colour and blood type. The calculator uses Chile's own figures from the tables above, not world averages.
This is an estimate, not a measurement. It multiplies three national frequencies as if they were independent, and they are not: eye and hair colour share pigmentation genes, so a combination that tends to run together, such as blue eyes with blonde hair, is more common than the multiplication suggests, while one that rarely does, such as blue eyes with black hair, is rarer. Blood type is independent of both. The frequencies are national averages from public datasets — see Data Sources.
That number describes the body you were born with. Fraeon, our other site, does the same arithmetic for the part you chose: the films, series, games, books, anime and manga you have actually finished. Start your log →
๐๏ธ 456 People, 52 Surnames: Counting Names on Rapa Nui
The census of Easter Island carried out by the Misión franco-belga in 1934 recorded 456 Rapanui individuals carrying 52 distinct paternal surnames. The count comes from Miguel Hernández, Clara García-Moro and Mireia Esparza, who worked from that census, then from a list of families constituted up to 1937, and from that year onward from the baptism registry of the Hanga Roa parish, publishing the work in the journal Antropo, issue 36, in 2016. They report that the number of distinct Rapanui surnames has since fallen to almost half the 1934 figure, and that after the island’s population opened in 1966, marriages outside the community raised overall diversity and lowered internal kinship.
Hold that denominator next to the calculator above. A Chilean national frequency is measured against millions of people; in that 1934 count a surname was measured against hundreds, and a stock of 52 names behaves nothing like a stock of hundreds of thousands. Rare always means rare inside some stated group, and which group gets stated is a choice somebody made.
๐ช Which Surname Goes First, and the Coin That Settles It
A Chilean child takes a surname from each parent, and which one comes first is for the parents to settle. Ley 21.334, promulgated on 9 May 2021 and published on 14 May 2021, sits with the Ministerio de Justicia y Derechos Humanos and is titled, in translation, on the determination of the order of surnames by agreement of the parents. Under it the parents agree the order in which their respective first surnames pass on for the first of their common children, and that order then holds for all of them. ChileAtiende, the state’s public-services portal, spells out what happens at the registration: the agreement form, the C-9, has to be presented signed by both parents, and without the form the registration cannot be made. If it is not signed by both, the law has the order of the registered child’s surnames settled by a draw before the civil registrar — by means of a coin.
That is worth knowing before you count anything. Where a form reaches the counter without both signatures, which family name leads is settled by a coin rather than by custom. A name-rarity figure sits downstream of small administrative moments like that one — see how rare is my name.
โญ Rare Facts About Chile
Where the Chilean numbers on this page come from
The census question and the afrodescendiente figures come from the Instituto Nacional de Estadísticas, Chile’s statistics office, whose Censo 2024 counted a población censada of 18,480,432. The 20M in the tile above is rounded from the UN and World Bank series described on Data Sources, not from that census count. The surname rules come from the text of Ley 21.334 and from ChileAtiende; the Rapa Nui surname counts come from Hernández, García-Moro and Esparza in Antropo 36 (2016). The eye and hair colour figures are not collected by any statistics office — they are estimates drawn from survey and academic literature, and the colour categories are not standardised. Height and blood type come from the health surveys and blood-service studies listed on Data Sources. Last checked September 2026.