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We present a comprehensive catalog of cool (period $P\gtrsim 2\,\mathrm{yr}$)transiting planet candidates in the four-year light curves from the prime\kepler\ mission. Most of the candidates show only one or two transits and havelargely been missed in the original Kepler Object of Interest catalog. Ourcatalog is based on all known such candidates in the literature as well as newcandidates from the search in this paper, and provides a resource to explorethe planet population near the snow line of Sun-like stars. We homogeneouslyperformed pixel-level vetting, stellar characterization with GAIA parallax andarchival/Subaru spectroscopy, and light-curve modeling to derive planetparameters and to eliminate stellar binaries. The resulting clean sampleconsists of 67 planet candidates whose radii are typically constrained to 5\%,in which 23 are newly reported. The number of Jupiter-sized candidates (29 with$r>8\,R_\oplus$) in the sample is consistent with the Doppler occurrence. Thesmaller candidates are more prevalent (23 with $4<r/R_\oplus<8$, 15 with$r/R_\oplus<4$) and suggest that long-period Neptune-sized planets are at leastas common as the Jupiter-sized ones, although our sample is yet to be correctedfor detection completeness. If the sample is assumed to be complete, thesenumbers imply the occurrence rate of $0.39\pm0.07$ planets with$4<r/R_\oplus<14$ and $2<P/\mathrm{yr}<20$ per FGK dwarf. The stars hostingcandidates with $r>4\,R_\oplus$ have systematically higher [Fe/H] than theKepler field stars, providing evidence that giant planet--metallicitycorrelation extends to $P>2\,\mathrm{yr}$.

Transiting Planets near the Snow Line from Kepler. I. Catalog