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Halpha and UBV photometry of NGC 6822 are used to study the distribution ofOB stars and HII regions in the galaxy and to determine whether individualregions of the galaxy are in a state of ionization balance. Four distinctcomponents of the Halpha emission (bright, halo, diffuse and field)differentiated by their surface brightnesses are identified. We find thatapproximately 1/2 of all OB stars in NGC 6822 are located in the field whileonly 1/4 are found in the combined bright and halo regions, suggesting that OBstars spend roughly 3/4 of their lifetimes outside ``classical'' H II regions.Comparing the observed Halpha emission with that predicted from stellarionizing flux models, we find that although the bright, halo and diffuseregions are probably in ionization balance, the field region is producing atleast 6 times as much ionizing flux as is observed. The ionization balanceresults in NGC 6822 suggest that star formation rates obtained from Halphaluminosities must underestimate the true star formation rate in this galaxy byabout 50%. Comparing our results for NGC 6822 with previous results for thespiral galaxy M33, we find that the inner kiloparsec of M33 is in a moreserious state of ionization imbalance, perhaps due to its higher surfacedensity of blue stars.Comment: Replaced version should now compile with standard aastex style files.  28 pages, aastex preprint format. Accepted in ApJ. Hardcopies of figures  available on request to wilson@physics.mcmaster.c

Are Galaxies Optically Thin to Their Own Lyman-Continuum Radiation? II. NGC 6822