IC 1613 is an isolated dwarf galaxy within the Local Group .
Low foreground and internal extinction , low metallicity , and low crowding make it an invaluable testbed for the calibration of the local distance ladder .
We present here new , high-fidelity distance estimates to IC 1613 via its Tip of the Red Giant Branch ( TRGB ) and its RR Lyrae ( RRL ) variables as part of the Carnegie-Chicago Hubble Program , which seeks an alternate local route to H _ { 0 } using Population II stars .
We have measured an extinction-corrected TRGB I _ { \mathrm { ACS } } ^ { \mathrm { TRGB } } = 20.32 \pm 0.02 _ { stat } \pm 0.01 _ { sys } ~ { } \mathrm { mag } using wide-field observations obtained from the IMACS camera on the Magellan-Baade telescope .
We have further constructed V I H RRL period-luminosity relations using archival and new observations from the ACS/WFC and WFC3/IR instruments aboard the Hubble Space Telescope ( HST ) .
In advance of future Gaia data releases , we set provisional values for the TRGB luminosity via the Large Magellanic Cloud and Galactic RRL zero-points via HST parallaxes .
We find corresponding true distance moduli \mu _ { I } ^ { \mathrm { TRGB } } = 24.27 \pm 0.05 ~ { } \mathrm { mag } and \langle \mu ^ { \mathrm { RRL } } \rangle = 24.30 \pm 0.07 mag .
We compare our results to a body of recent publications on IC 1613 and find no statistically significant difference between the distances derived from stars of Population I and II .