In France, numerous HIV patients still discover their HIV status as a result of AIDS-related symptoms. We investigated factors related to the absence of any HIV testing in men and women separately, using the data from the SIRS cohort, which includes 3023 households representative of the Paris metropolitan area in 2005. The failure to use HIV testing services was studied in relation to individual socioeconomic and demographic factors as well as some psychosocial characteristics. The effect of the characteristics of the residential neighbourhood was also analysed using multilevel models. In multivariate analysis, the factors associated with no history of HIV testing in women were an age >44, the absence of any pregnancy during the previous 15 years , a low education level, unemployment, to have had no or only one steady relationship in one's lifetime, to have a religious affiliation and to live in a poor neighbourhood. In men, factors were age <30 or >44, to have had no or only one steady relationship during one's lifetime, to have a religious affiliation and to perceive oneself as being at low risk of HIV infection An association according to the 'migration origin' was observed among men: foreigners and French men born to (at least) one foreign parent were more likely not to have been tested than French men born to two French parents. We conclude that gender, social and territorial differences exist in HIV testing among people living in the Paris area. More systematic proposals of HIV test in primary care would be an effective policy to overcome these persistent social stratifications.