Top surnames in Ilston from the 1881 British Census

Top surnames by total occurrences

Surname	Total	Frequency	Index
JONES	31	11.1511	9.8460
DAVIES	24	8.6331	16.9731
JENKINS	16	5.7554	48.8400
WEBB	16	5.7554	42.4628
WILLIAMS	14	5.0360	7.0105
JOHNS	13	4.6763	181.0585
PHILLIPS	13	4.6763	26.1359
THOMAS	10	3.5971	8.7169
BENNETT	10	3.5971	21.8866
BEYNON	9	3.2374	452.2613

Surname	Total	Frequency	Index
ROCH	278	1333.3333	0.2780
HARIS	278	666.6667	0.2780
BEYNON	278	452.2613	0.2780
LONEY	278	250.0000	0.2780
FRANCES	278	228.5714	0.2780
GWYNN	278	200.0000	0.2780
JOHNS	278	181.0585	0.2780
BLEWITT	278	161.2903	0.2780
BEVAN	278	88.2353	0.2780
CORNWALL	278	84.7458	0.2780

The Total column shows the total number of people in that county or town with this surname. For example, there were 24 people called DAVIES in Ilston at the time of the 1881 census.
The Frequency column shows the percentage of people in this county or town with this surname. For example, a frequency of 8.6331 in Ilston means that 8.6331% of the people in Ilston on census day were called DAVIES.
The Index column shows the relative probability of finding someone called DAVIES in this county or town, compared with the probability of finding them anywhere in Britain as a whole. An index of 1 means that if you pick someone at random from this county or town, you have exactly the same probability of picking someone called DAVIES a if you picked at random from the whole of the UK. If the index is higher than 1, then you are more likely to find someoen called DAVIES here than if you picked from the UK as a whole, and if it's lower then you are less likely. The actual figure shows the level of probability - for example, a figure of 2 would indicate that you are twice as likely to find someone called DAVIES here than in the UK as a whole, and 10 would make it ten times as likely. The value of 16.9731 in Ilston means that you are 16.9731 times as likely to find someone with the surname of DAVIES in Ilston than you would be in the whole of the UK.