Finite element modeling is a powerful and cost-effective tool for solving problems in structural dynamics and acoustics, particularly at low frequencies. In the present work the transient responses of the sonic boom transmission from outdoors to indoors were studied. Detailed finite element models of individual rooms from two residential structures were built. The simulated geometries were matched to the physical geometries of two houses exposed to sonic booms that were heavily instrumented by NASA in the summers of 2006 and 2007. The residential building walls were composed of studs and sheathing, and these were modeled using MSC NASTRAN/PATRAN software. To match the normal mode frequencies of the walls, it was necessary to not only match material coefficients but also the actual connections between the studs and the sheathing. The fluid structure coupling between the walls and the air was utilized to analyze the acoustic response of the sonic boom in the room interior. In order to verify the correctness of the model, the vibration responses of the structure and the acoustic cavity were compared with measured data. [Work supported by NASA.]